diff --git a/.rust-toolchain b/.rust-toolchain
index 88310d7db..bfda7af0b 100644
--- a/.rust-toolchain
+++ b/.rust-toolchain
@@ -1 +1 @@
-1.90
\ No newline at end of file
+1.95
\ No newline at end of file
diff --git a/README.md b/README.md
index af0a6a3ca..0fb827b34 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ Zen is a firefox-based browser with the aim of pushing your productivity to a ne
 ### Firefox Versions
 
 - [`Release`](https://zen-browser.app/download) - Is currently built using Firefox version `151.0.4`! 🚀
-- [`Twilight`](https://zen-browser.app/download?twilight) - Is currently built using Firefox version `RC 151.0.4`!
+- [`Twilight`](https://zen-browser.app/download?twilight) - Is currently built using Firefox version `RC 152.0`!
 
 ### Contributing
 
diff --git a/build/firefox-cache/l10n-last-commit-hash b/build/firefox-cache/l10n-last-commit-hash
index f138bc25d..3d6223d5d 100644
--- a/build/firefox-cache/l10n-last-commit-hash
+++ b/build/firefox-cache/l10n-last-commit-hash
@@ -1 +1 @@
-9a6aa4c359d1fb6ac60decc82402f82d49a17cea
\ No newline at end of file
+a58ad2d2952face15859068dd4421cf68d6a9dda
\ No newline at end of file
diff --git a/src/-prettierignore.patch b/src/-prettierignore.patch
index d844969ee..ed444531d 100644
--- a/src/-prettierignore.patch
+++ b/src/-prettierignore.patch
@@ -1,8 +1,8 @@
 diff --git a/.prettierignore b/.prettierignore
-index de2efe413e5696a3b8d0467a3a9e668dfadd8a1a..01c76d8e639d5630fca9cccb55d415fc4e903e91 100644
+index 949896ff064ae0b54b6a657ea074bc88e12820f7..5249f420972667bece4d85fe8d35073afaebeb8a 100644
 --- a/.prettierignore
 +++ b/.prettierignore
-@@ -1805,3 +1805,12 @@ tools/ts/test/baselines/
+@@ -1803,3 +1803,12 @@ tools/ts/test/baselines/
  try_task_config.json
  xpcom/idl-parser/xpidl/fixtures/xpctest.d.json
  **/package-lock.json
diff --git a/src/browser/actors/EncryptedMediaParent-sys-mjs.patch b/src/browser/actors/EncryptedMediaParent-sys-mjs.patch
index 74f9f5d19..36ac8cdeb 100644
--- a/src/browser/actors/EncryptedMediaParent-sys-mjs.patch
+++ b/src/browser/actors/EncryptedMediaParent-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/actors/EncryptedMediaParent.sys.mjs b/browser/actors/EncryptedMediaParent.sys.mjs
-index 492dce93d3cc7c6ec16db047c9e47b175ef3a0fe..757e5543e0e6900c414db6d7a96d511608c1e50a 100644
+index 8bdeba9b8803354e23a3881147fee6a6af94a63b..61c8407df1fbebcc36481ad2169a9c103b4faed5 100644
 --- a/browser/actors/EncryptedMediaParent.sys.mjs
 +++ b/browser/actors/EncryptedMediaParent.sys.mjs
 @@ -199,6 +199,7 @@ export class EncryptedMediaParent extends JSWindowActorParent {
diff --git a/src/browser/actors/WebRTCParent-sys-mjs.patch b/src/browser/actors/WebRTCParent-sys-mjs.patch
index 46e7f96b7..08d42ab63 100644
--- a/src/browser/actors/WebRTCParent-sys-mjs.patch
+++ b/src/browser/actors/WebRTCParent-sys-mjs.patch
@@ -1,12 +1,12 @@
 diff --git a/browser/actors/WebRTCParent.sys.mjs b/browser/actors/WebRTCParent.sys.mjs
-index b743bd83529c4cd01a6bc820967186dbe41b6144..e24c48bac0f4ae3d4b26087b7e0cac7910019d0e 100644
+index 98b10b1d789c20b3463de4f703af102f6908318b..29534480fbeda6d66cb9dab81afdaed8d8a5c565 100644
 --- a/browser/actors/WebRTCParent.sys.mjs
 +++ b/browser/actors/WebRTCParent.sys.mjs
 @@ -152,6 +152,7 @@ export class WebRTCParent extends JSWindowActorParent {
  
-     let tabbrowser = browser.ownerGlobal.gBrowser;
+     let tabbrowser = browser.documentGlobal.gBrowser;
      if (tabbrowser) {
-+      browser.ownerGlobal.gZenMediaController.updateMediaSharing(state);
++      browser.documentGlobal.gZenMediaController.updateMediaSharing(state);
        tabbrowser.updateBrowserSharing(browser, {
          webRTC: state,
        });
diff --git a/src/browser/base/content/aboutDialog-xhtml.patch b/src/browser/base/content/aboutDialog-xhtml.patch
index 1145f64d5..333a28ed3 100644
--- a/src/browser/base/content/aboutDialog-xhtml.patch
+++ b/src/browser/base/content/aboutDialog-xhtml.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/aboutDialog.xhtml b/browser/base/content/aboutDialog.xhtml
-index c64980810570fcea84e33fdc2d66ac42a79f4e46..aa629ebb38a9aa74048fe3fc759f716fad57d6f3 100644
+index 3ffd464b960a4299a7dd0cd87e4fc2f781b9d593..ef9f42d1f0196902b4af31f4496891fcd6319831 100644
 --- a/browser/base/content/aboutDialog.xhtml
 +++ b/browser/base/content/aboutDialog.xhtml
 @@ -102,10 +102,6 @@
diff --git a/src/browser/base/content/browser-addons-js.patch b/src/browser/base/content/browser-addons-js.patch
index 8ab878b64..92d2ed624 100644
--- a/src/browser/base/content/browser-addons-js.patch
+++ b/src/browser/base/content/browser-addons-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser-addons.js b/browser/base/content/browser-addons.js
-index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05f45bce08 100644
+index 56acad9b7c21c07842f901d24525a97a0ba20217..829054218dc6fbb14fe034546e8da62b12516eae 100644
 --- a/browser/base/content/browser-addons.js
 +++ b/browser/base/content/browser-addons.js
 @@ -1060,7 +1060,7 @@ var gXPInstallObserver = {
@@ -20,7 +20,7 @@ index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05
        },
      };
  
-@@ -2209,7 +2209,7 @@ var gUnifiedExtensions = {
+@@ -2214,7 +2214,7 @@ var gUnifiedExtensions = {
    // If the new ID is not added in NOTIFICATION_IDS, consider handling the case
    // in the "PopupNotificationsBeforeAnchor" handler elsewhere in this file.
    getPopupAnchorID(aBrowser, aWindow) {
@@ -29,7 +29,7 @@ index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05
      const attr = anchorID + "popupnotificationanchor";
  
      if (!aBrowser[attr]) {
-@@ -2220,7 +2220,7 @@ var gUnifiedExtensions = {
+@@ -2225,7 +2225,7 @@ var gUnifiedExtensions = {
          anchorID
          // Anchor on the toolbar icon to position the popup right below the
          // button.
@@ -38,7 +38,7 @@ index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05
      }
  
      return anchorID;
-@@ -2545,7 +2545,7 @@ var gUnifiedExtensions = {
+@@ -2550,7 +2550,7 @@ var gUnifiedExtensions = {
      requestAnimationFrame(() => this.updateAttention());
    },
  
@@ -47,7 +47,7 @@ index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05
      // A list of extension widget IDs (possibly empty).
      let widgetIDs;
  
-@@ -2559,7 +2559,7 @@ var gUnifiedExtensions = {
+@@ -2564,7 +2564,7 @@ var gUnifiedExtensions = {
      }
  
      // The list of overflowed extensions in the extensions panel.
@@ -56,7 +56,7 @@ index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05
        "#overflowed-extensions-list"
      );
  
-@@ -2660,37 +2660,41 @@ var gUnifiedExtensions = {
+@@ -2665,37 +2665,41 @@ var gUnifiedExtensions = {
        );
        template.replaceWith(template.content);
        this._panel = document.getElementById("unified-extensions-panel");
@@ -123,7 +123,7 @@ index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05
      if (!CustomizationHandler.isCustomizing()) {
        if (aEvent) {
          if (
-@@ -2712,6 +2716,7 @@ var gUnifiedExtensions = {
+@@ -2717,6 +2721,7 @@ var gUnifiedExtensions = {
          // and no alternative content is available for display in the panel.
          const policies = this.getActivePolicies();
          if (
@@ -131,7 +131,7 @@ index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05
            policies.length &&
            !this.hasExtensionsInPanel(policies) &&
            !this.isPrivateWindowMissingExtensionsWithoutPBMAccess() &&
-@@ -2727,32 +2732,30 @@ var gUnifiedExtensions = {
+@@ -2732,32 +2737,30 @@ var gUnifiedExtensions = {
        this.blocklistAttentionInfo =
          await AddonManager.getBlocklistAttentionInfo();
  
@@ -170,7 +170,7 @@ index 853d3c9dd9dd806d49a3c5a44304dd7370f0c90e..ea927b05213981fbfa5494d8d22bce05
            triggerEvent: aEvent,
          });
        }
-@@ -2947,18 +2950,20 @@ var gUnifiedExtensions = {
+@@ -2952,18 +2955,20 @@ var gUnifiedExtensions = {
        this._maybeMoveWidgetNodeBack(widgetId);
      }
  
diff --git a/src/browser/base/content/browser-box-inc-xhtml.patch b/src/browser/base/content/browser-box-inc-xhtml.patch
index 6f5f7ee91..e807e8553 100644
--- a/src/browser/base/content/browser-box-inc-xhtml.patch
+++ b/src/browser/base/content/browser-box-inc-xhtml.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser-box.inc.xhtml b/browser/base/content/browser-box.inc.xhtml
-index d58fcdf99843d110b708f3fbf9fb317787fadfcf..cfc2aad902641609c3804e615c4cb66ce65299b7 100644
+index 31cd4f927c273573b38021f84417101c57377902..f293e1c61d3b7a80b7dc472d927893f0439d6af9 100644
 --- a/browser/base/content/browser-box.inc.xhtml
 +++ b/browser/base/content/browser-box.inc.xhtml
 @@ -3,12 +3,22 @@
@@ -10,7 +10,7 @@ index d58fcdf99843d110b708f3fbf9fb317787fadfcf..cfc2aad902641609c3804e615c4cb66c
 +  <html:div id="zen-browser-background" class="zen-browser-generic-background">
 +    <html:div class="zen-browser-grain" />
 +  </html:div>
-   <box context="sidebar-context-menu" id="sidebar-main" hidden="true">
+   <box context="sidebar-context-menu" id="sidebar-main" class="chrome-block" hidden="true">
      <html:sidebar-main flex="1">
        <box id="vertical-tabs" slot="tabstrip" customizable="true" contextmenu="toolbar-context-menu"></box>
      </html:sidebar-main>
@@ -22,7 +22,7 @@ index d58fcdf99843d110b708f3fbf9fb317787fadfcf..cfc2aad902641609c3804e615c4cb66c
 +  </html:div>
 +<hbox id="zen-tabbox-wrapper" flex="1">
 +  <tabbox id="tabbrowser-tabbox" flex="1" tabcontainer="tabbrowser-tabs">
-   <vbox id="sidebar-box" hidden="true" class="chromeclass-extrachrome">
+   <vbox id="sidebar-box" hidden="true" class="chromeclass-extrachrome chrome-block">
      <box id="sidebar-header" align="center">
        <toolbarbutton id="sidebar-switcher-target" class="tabbable" aria-expanded="false">
 @@ -25,7 +35,7 @@
diff --git a/src/browser/base/content/browser-commands-js.patch b/src/browser/base/content/browser-commands-js.patch
index cebf5cd5b..6f057bdf8 100644
--- a/src/browser/base/content/browser-commands-js.patch
+++ b/src/browser/base/content/browser-commands-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser-commands.js b/browser/base/content/browser-commands.js
-index 2d9f5591c9ffdd5948298555c461850521c0b45f..c46072ca4e96b419987f7e782e26b3de71d7c8e3 100644
+index 87148c353ee852248e887e3ae31d46bcbee1cd11..91b1d5a8e0e512dd50139f99ad3e3ba7bade80fb 100644
 --- a/browser/base/content/browser-commands.js
 +++ b/browser/base/content/browser-commands.js
 @@ -13,6 +13,10 @@ var BrowserCommands = {
@@ -13,7 +13,7 @@ index 2d9f5591c9ffdd5948298555c461850521c0b45f..c46072ca4e96b419987f7e782e26b3de
        try {
          gBrowser.goBack();
        } catch (ex) {}
-@@ -234,6 +238,10 @@ var BrowserCommands = {
+@@ -230,6 +234,10 @@ var BrowserCommands = {
        }
      }
  
@@ -24,7 +24,7 @@ index 2d9f5591c9ffdd5948298555c461850521c0b45f..c46072ca4e96b419987f7e782e26b3de
      // A notification intended to be useful for modular peformance tracking
      // starting as close as is reasonably possible to the time when the user
      // expressed the intent to open a new tab.  Since there are a lot of
-@@ -318,6 +326,14 @@ var BrowserCommands = {
+@@ -346,6 +354,14 @@ var BrowserCommands = {
        return;
      }
  
@@ -39,7 +39,7 @@ index 2d9f5591c9ffdd5948298555c461850521c0b45f..c46072ca4e96b419987f7e782e26b3de
      // Keyboard shortcuts that would close a tab that is pinned select the first
      // unpinned tab instead.
      if (
-@@ -325,8 +341,8 @@ var BrowserCommands = {
+@@ -353,8 +369,8 @@ var BrowserCommands = {
        (event.ctrlKey || event.metaKey || event.altKey) &&
        gBrowser.selectedTab.pinned
      ) {
diff --git a/src/browser/base/content/browser-fullScreenAndPointerLock-js.patch b/src/browser/base/content/browser-fullScreenAndPointerLock-js.patch
index 777274801..e3f016e80 100644
--- a/src/browser/base/content/browser-fullScreenAndPointerLock-js.patch
+++ b/src/browser/base/content/browser-fullScreenAndPointerLock-js.patch
@@ -1,12 +1,12 @@
 diff --git a/browser/base/content/browser-fullScreenAndPointerLock.js b/browser/base/content/browser-fullScreenAndPointerLock.js
-index 1eaf79a4f6788c518a4759bbce81175fd5fba220..6fde5e944ad4a847180ca83a9e6f4fde20aa7b42 100644
+index d0d3b6fc57800b073bb1c75f6e55212749815b0a..f3d5790eed58f1cb9a36229582e0fa00f3668962 100644
 --- a/browser/base/content/browser-fullScreenAndPointerLock.js
 +++ b/browser/base/content/browser-fullScreenAndPointerLock.js
-@@ -501,8 +501,6 @@ var FullScreen = {
-     // don't need that kind of precision in our CSS.
+@@ -502,8 +502,6 @@ var FullScreen = {
      shiftSize = shiftSize.toFixed(2);
      let translate = shiftSize > 0 ? `0 ${shiftSize}px` : "";
--    document.body.style.translate = translate;
+     gNavToolbox.classList.toggle("fullscreen-floating-toolbox", shiftSize > 0);
+-    gNavToolbox.style.translate = translate;
 -    gURLBar.style.translate = gURLBar.hasAttribute("breakout") ? translate : "";
      let searchbar = document.getElementById("searchbar-new");
      if (searchbar) {
diff --git a/src/browser/base/content/browser-gestureSupport-js.patch b/src/browser/base/content/browser-gestureSupport-js.patch
index 7132d6fdd..43fc9b8a7 100644
--- a/src/browser/base/content/browser-gestureSupport-js.patch
+++ b/src/browser/base/content/browser-gestureSupport-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser-gestureSupport.js b/browser/base/content/browser-gestureSupport.js
-index a28d54bf72c0e6495b9586f220d1859aac794936..411d7255a68c48643617d77cc279a0a831fdf5c9 100644
+index f94b39d26a1a9626b3e1f518e2395bc394d1262d..15e198f4bb440cff0bbfb8ccd97c2ce180d5724f 100644
 --- a/browser/base/content/browser-gestureSupport.js
 +++ b/browser/base/content/browser-gestureSupport.js
 @@ -247,6 +247,10 @@ var gGestureSupport = {
@@ -13,7 +13,7 @@ index a28d54bf72c0e6495b9586f220d1859aac794936..411d7255a68c48643617d77cc279a0a8
      return canGoBack || canGoForward;
    },
  
-@@ -832,7 +836,7 @@ var gHistorySwipeAnimation = {
+@@ -848,7 +852,7 @@ var gHistorySwipeAnimation = {
     * @return true if there is a previous page in history, false otherwise.
     */
    canGoBack: function HSA_canGoBack() {
diff --git a/src/browser/base/content/browser-init-js.patch b/src/browser/base/content/browser-init-js.patch
index 11ab8dcfa..db66329f6 100644
--- a/src/browser/base/content/browser-init-js.patch
+++ b/src/browser/base/content/browser-init-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/base/content/browser-init.js b/browser/base/content/browser-init.js
-index d09cf65931eda253b2a71131f42883ccf6eb5724..f617863dac8e07def02d1d4ef7e5ade1caf50df1 100644
+index 0aa4baea8e5e6d742fc6cd3333068e7eb64b5bbc..057bb2386420edd31154979338e71d00a51a7266 100644
 --- a/browser/base/content/browser-init.js
 +++ b/browser/base/content/browser-init.js
-@@ -302,6 +302,7 @@ var gBrowserInit = {
+@@ -307,6 +307,7 @@ var gBrowserInit = {
    },
  
    onLoad() {
@@ -10,7 +10,7 @@ index d09cf65931eda253b2a71131f42883ccf6eb5724..f617863dac8e07def02d1d4ef7e5ade1
      gBrowser.addEventListener("DOMUpdateBlockedPopups", e =>
        PopupAndRedirectBlockerObserver.handleEvent(e)
      );
-@@ -496,6 +497,7 @@ var gBrowserInit = {
+@@ -501,6 +502,7 @@ var gBrowserInit = {
  
      this._handleURIToLoad();
  
diff --git a/src/browser/base/content/browser-js.patch b/src/browser/base/content/browser-js.patch
index 5885abc6a..db7aaeba1 100644
--- a/src/browser/base/content/browser-js.patch
+++ b/src/browser/base/content/browser-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser.js b/browser/base/content/browser.js
-index d1ab42d59f05513ec60a7578b7acab44875c544c..8c3cd75704991b8572d3f13a936fddd2616b2946 100644
+index 1026474bb1bc026987be01a8c18fa0927cb911bc..60294e0587147d86ace8e6d6985d8c6eae8248b6 100644
 --- a/browser/base/content/browser.js
 +++ b/browser/base/content/browser.js
 @@ -34,6 +34,7 @@ ChromeUtils.defineESModuleGetters(this, {
@@ -24,7 +24,7 @@ index d1ab42d59f05513ec60a7578b7acab44875c544c..8c3cd75704991b8572d3f13a936fddd2
      if (backDisabled) {
        backCommand.removeAttribute("disabled");
      } else {
-@@ -3715,7 +3721,7 @@ function warnAboutClosingWindow() {
+@@ -3719,7 +3725,7 @@ function warnAboutClosingWindow() {
  
    if (!isPBWindow && !toolbar.visible) {
      return gBrowser.warnAboutClosingTabs(
@@ -33,7 +33,7 @@ index d1ab42d59f05513ec60a7578b7acab44875c544c..8c3cd75704991b8572d3f13a936fddd2
        gBrowser.closingTabsEnum.ALL
      );
    }
-@@ -3755,7 +3761,7 @@ function warnAboutClosingWindow() {
+@@ -3759,7 +3765,7 @@ function warnAboutClosingWindow() {
      return (
        isPBWindow ||
        gBrowser.warnAboutClosingTabs(
@@ -42,7 +42,7 @@ index d1ab42d59f05513ec60a7578b7acab44875c544c..8c3cd75704991b8572d3f13a936fddd2
          gBrowser.closingTabsEnum.ALL
        )
      );
-@@ -3780,7 +3786,7 @@ function warnAboutClosingWindow() {
+@@ -3784,7 +3790,7 @@ function warnAboutClosingWindow() {
      AppConstants.platform != "macosx" ||
      isPBWindow ||
      gBrowser.warnAboutClosingTabs(
@@ -51,13 +51,20 @@ index d1ab42d59f05513ec60a7578b7acab44875c544c..8c3cd75704991b8572d3f13a936fddd2
        gBrowser.closingTabsEnum.ALL
      )
    );
-@@ -4720,6 +4726,9 @@ var ConfirmationHint = {
+@@ -4744,6 +4750,16 @@ var ConfirmationHint = {
      }
  
-     document.l10n.setAttributes(this._message, messageId, options.l10nArgs);
+     document.l10n.setAttributes(this._message, messageId, l10nArgs);
 +    if (window.gZenUIManager?.showToast) {
-+      return window.gZenUIManager.showToast(messageId, options);
++      return window.gZenUIManager.showToast(messageId, {
++        hideCheckmark,
++        descriptionId,
++        l10nArgs,
++        showDescription,
++        position,
++        event,
++      });
 +    }
-     if (options.descriptionId) {
-       document.l10n.setAttributes(this._description, options.descriptionId);
+     if (descriptionId) {
+       document.l10n.setAttributes(this._description, descriptionId);
        this._description.hidden = false;
diff --git a/src/browser/base/content/browser-places-js.patch b/src/browser/base/content/browser-places-js.patch
index e7ccfe59b..a67fa4b7d 100644
--- a/src/browser/base/content/browser-places-js.patch
+++ b/src/browser/base/content/browser-places-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/base/content/browser-places.js b/browser/base/content/browser-places.js
-index e3feaebc551bfe7127b9701a7f76996022516af0..460b39f2a9f1f36d4b821c693951214098b644f7 100644
+index b04e9afe4041b9bcd62527a22f468b84bf0de5d9..9e20e5a9d58fb6752037708f3d1404e00c98b132 100644
 --- a/browser/base/content/browser-places.js
 +++ b/browser/base/content/browser-places.js
-@@ -261,6 +261,8 @@ var StarUI = {
+@@ -262,6 +262,8 @@ var StarUI = {
        });
      }
  
@@ -11,7 +11,7 @@ index e3feaebc551bfe7127b9701a7f76996022516af0..460b39f2a9f1f36d4b821c6939512140
      let onPanelReady = fn => {
        let target = this.panel;
        if (target.parentNode) {
-@@ -312,6 +314,21 @@ var StarUI = {
+@@ -313,6 +315,21 @@ var StarUI = {
      }
    },
  
@@ -33,7 +33,7 @@ index e3feaebc551bfe7127b9701a7f76996022516af0..460b39f2a9f1f36d4b821c6939512140
    removeBookmarkButtonCommand: function SU_removeBookmarkButtonCommand() {
      this._removeBookmarksOnPopupHidden = true;
      this.panel.hidePopup();
-@@ -1815,6 +1832,7 @@ var BookmarkingUI = {
+@@ -1841,6 +1858,7 @@ var BookmarkingUI = {
        document.getElementById("context-bookmarkpage"),
        PanelMultiView.getViewNode(document, "panelMenuBookmarkThisPage"),
        document.getElementById("pageAction-panel-bookmark"),
diff --git a/src/browser/base/content/browser-profiles-js.patch b/src/browser/base/content/browser-profiles-js.patch
index 112db8bdb..60713a40e 100644
--- a/src/browser/base/content/browser-profiles-js.patch
+++ b/src/browser/base/content/browser-profiles-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser-profiles.js b/browser/base/content/browser-profiles.js
-index fb260896c14b90734182d2f232e33350287f0209..9984a2d18dfd33e3606adac0e8c5f80f7e35e682 100644
+index 35a5fd0c320cdf3cdf42442881d71e5ee6dc865d..6ef175f27c614f74ad32ecefb2854e3b9fc01d13 100644
 --- a/browser/base/content/browser-profiles.js
 +++ b/browser/base/content/browser-profiles.js
 @@ -70,6 +70,7 @@ var gProfiles = {
diff --git a/src/browser/base/content/browser-sets-inc-xhtml.patch b/src/browser/base/content/browser-sets-inc-xhtml.patch
index 7413314e3..3d383c900 100644
--- a/src/browser/base/content/browser-sets-inc-xhtml.patch
+++ b/src/browser/base/content/browser-sets-inc-xhtml.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/base/content/browser-sets.inc.xhtml b/browser/base/content/browser-sets.inc.xhtml
-index 1263856344c4613ea58639a64e747fd0c3f771f7..c83ed7dd6a2482354c5bd37ce2e2cbf88ee6cf60 100644
+index 65ee617216d8a69f29b06fb48078f53a42bd9da7..3373d1a44281496555ab5a256020dd16afa4b823 100644
 --- a/browser/base/content/browser-sets.inc.xhtml
 +++ b/browser/base/content/browser-sets.inc.xhtml
-@@ -418,3 +418,4 @@
+@@ -420,3 +420,4 @@
           internal="true"/>
  #endif
    </keyset>
diff --git a/src/browser/base/content/browser-siteIdentity-js.patch b/src/browser/base/content/browser-siteIdentity-js.patch
index cae64fb0e..e125a9d68 100644
--- a/src/browser/base/content/browser-siteIdentity-js.patch
+++ b/src/browser/base/content/browser-siteIdentity-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser-siteIdentity.js b/browser/base/content/browser-siteIdentity.js
-index cff28e1cdb550357662e8a7a41856e80b1de0018..9d569c1a1e6249c58a1e30fbb224c316c52ef204 100644
+index c6d060853cd3dab9d5c02bdc8de707b8fbde4b6d..bb3856be183f815f105a1175b71ee9b3a61c2f65 100644
 --- a/browser/base/content/browser-siteIdentity.js
 +++ b/browser/base/content/browser-siteIdentity.js
 @@ -464,11 +464,6 @@ var gIdentityHandler = {
@@ -14,7 +14,7 @@ index cff28e1cdb550357662e8a7a41856e80b1de0018..9d569c1a1e6249c58a1e30fbb224c316
  
      let baseDomain = SiteDataManager.getBaseDomainFromHost(this._uri.host);
      if (SiteDataManager.promptSiteDataRemoval(window, [baseDomain])) {
-@@ -853,7 +848,7 @@ var gIdentityHandler = {
+@@ -860,7 +855,7 @@ var gIdentityHandler = {
        // This is a secure internal Firefox page.
        this._identityBox.className = "chromeUI";
        let brandBundle = document.getElementById("bundle_brand");
@@ -23,7 +23,7 @@ index cff28e1cdb550357662e8a7a41856e80b1de0018..9d569c1a1e6249c58a1e30fbb224c316
      } else if (this._pageExtensionPolicy) {
        // This is a WebExtension page.
        this._identityBox.className = "extensionPage";
-@@ -1196,6 +1191,12 @@ var gIdentityHandler = {
+@@ -1198,6 +1193,12 @@ var gIdentityHandler = {
        }
      }
  
diff --git a/src/browser/base/content/main-popupset-inc-xhtml.patch b/src/browser/base/content/main-popupset-inc-xhtml.patch
index 219c94196..f78938295 100644
--- a/src/browser/base/content/main-popupset-inc-xhtml.patch
+++ b/src/browser/base/content/main-popupset-inc-xhtml.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/base/content/main-popupset.inc.xhtml b/browser/base/content/main-popupset.inc.xhtml
-index 81b3d0a744b9f40358219696e0e52a8114c53e83..71eb93e50f19af1d8f44fb425970cc87416c84a3 100644
+index ded45fd53f0fd7f0a48283d61cffdda20f79137e..7fc34d89146b723cb01a1432bc1d1fe97e5d2eba 100644
 --- a/browser/base/content/main-popupset.inc.xhtml
 +++ b/browser/base/content/main-popupset.inc.xhtml
-@@ -235,6 +235,10 @@
+@@ -234,6 +234,10 @@
             hidden="true"
             tabspecific="true"
             aria-labelledby="editBookmarkPanelTitle">
@@ -13,7 +13,7 @@ index 81b3d0a744b9f40358219696e0e52a8114c53e83..71eb93e50f19af1d8f44fb425970cc87
        <box class="panel-header">
          <html:h1>
            <html:span id="editBookmarkPanelTitle"/>
-@@ -260,6 +264,7 @@
+@@ -259,6 +263,7 @@
                    class="footer-button"/>
          </html:moz-button-group>
        </vbox>
@@ -21,7 +21,7 @@ index 81b3d0a744b9f40358219696e0e52a8114c53e83..71eb93e50f19af1d8f44fb425970cc87
      </panel>
    </html:template>
  
-@@ -699,6 +704,8 @@
+@@ -765,6 +770,8 @@
  
  #include popup-notifications.inc.xhtml
  
diff --git a/src/browser/base/content/navigator-toolbox-inc-xhtml.patch b/src/browser/base/content/navigator-toolbox-inc-xhtml.patch
index 32856a975..6df802924 100644
--- a/src/browser/base/content/navigator-toolbox-inc-xhtml.patch
+++ b/src/browser/base/content/navigator-toolbox-inc-xhtml.patch
@@ -1,13 +1,13 @@
 diff --git a/browser/base/content/navigator-toolbox.inc.xhtml b/browser/base/content/navigator-toolbox.inc.xhtml
-index b4abfb868fc7c13e789acb57b44e386de6d31bf0..ad917f5362ed4f3ba0149c214fb53d3f087bbfcf 100644
+index e7e94e13a990c154fb54bda4a3420ca00bdac009..8253b7d403734973729a5982cceafc12bab24f54 100644
 --- a/browser/base/content/navigator-toolbox.inc.xhtml
 +++ b/browser/base/content/navigator-toolbox.inc.xhtml
 @@ -2,7 +2,7 @@
  # License, v. 2.0. If a copy of the MPL was not distributed with this
  # file, You can obtain one at http://mozilla.org/MPL/2.0/.
  
--<toolbox id="navigator-toolbox">
-+<toolbox id="navigator-toolbox" persist="width style">
+-<toolbox id="navigator-toolbox" class="chrome-block">
++<toolbox id="navigator-toolbox" class="chrome-block" persist="width style">
    <script src="chrome://browser/content/navigator-toolbox.js" />
  
    <!-- Menu -->
diff --git a/src/browser/base/content/nsContextMenu-sys-mjs.patch b/src/browser/base/content/nsContextMenu-sys-mjs.patch
index 96ce57ca7..bd7956d03 100644
--- a/src/browser/base/content/nsContextMenu-sys-mjs.patch
+++ b/src/browser/base/content/nsContextMenu-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/base/content/nsContextMenu.sys.mjs b/browser/base/content/nsContextMenu.sys.mjs
-index 97cb36e2ed48d00454e169fb0470b47ac994b883..1811a92885620c8a916937f467ebb7d0eb0d3a0e 100644
+index a9173d534626f18adcbfe570cbcdc0cd929cc31d..e09340242048a21ce6b3bd4d26bedc606354235e 100644
 --- a/browser/base/content/nsContextMenu.sys.mjs
 +++ b/browser/base/content/nsContextMenu.sys.mjs
-@@ -369,6 +369,9 @@ export class nsContextMenu {
+@@ -373,6 +373,9 @@ export class nsContextMenu {
      this.initTextFragmentItems();
      this.pdfjsContextMenu.initItems();
  
diff --git a/src/browser/base/content/zen-panels/folders-search.inc b/src/browser/base/content/zen-panels/folders-search.inc
index 1020a0d26..2aab4811e 100644
--- a/src/browser/base/content/zen-panels/folders-search.inc
+++ b/src/browser/base/content/zen-panels/folders-search.inc
@@ -3,7 +3,7 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 <panel id="zen-folder-tabs-popup"
-    nonnativepopover="true"
+    nonnative=""
     type="arrow"
     orient="vertical"
     side="left"
diff --git a/src/browser/base/jar-mn.patch b/src/browser/base/jar-mn.patch
index 504da60cd..fd1ec70c8 100644
--- a/src/browser/base/jar-mn.patch
+++ b/src/browser/base/jar-mn.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/base/jar.mn b/browser/base/jar.mn
-index 7eaca95f7e876809552da5a3af3449b7e7b1a34d..00f1e3047c59565c8830a40da3a85f3b228f7c93 100644
+index dd0f873535224344c8015d00a00d56e0b9392951..fcc013514836f2e26ea5c4cef2aa443f0368a3e6 100644
 --- a/browser/base/jar.mn
 +++ b/browser/base/jar.mn
-@@ -110,3 +110,5 @@ browser.jar:
+@@ -108,3 +108,5 @@ browser.jar:
  
  # L10n resources and overrides.
  % override chrome://global/locale/appstrings.properties chrome://browser/locale/appstrings.properties
diff --git a/src/browser/base/moz-build.patch b/src/browser/base/moz-build.patch
index 879d6fc70..ada70056a 100644
--- a/src/browser/base/moz-build.patch
+++ b/src/browser/base/moz-build.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/base/moz.build b/browser/base/moz.build
-index 286e17552e2ab2d7e44c6ba99c84630cadd24e94..076f813aea971db1e1c1429fc0b64c1784a22722 100644
+index 33b90b64e2773efdb0376779907b6ef7125c0fff..8446118edb56260a59115b048dde087a50805a62 100644
 --- a/browser/base/moz.build
 +++ b/browser/base/moz.build
-@@ -78,3 +78,5 @@ DEFINES["MOZ_APP_VERSION_DISPLAY"] = CONFIG["MOZ_APP_VERSION_DISPLAY"]
+@@ -79,3 +79,5 @@ DEFINES["MOZ_APP_VERSION_DISPLAY"] = CONFIG["MOZ_APP_VERSION_DISPLAY"]
  DEFINES["APP_LICENSE_BLOCK"] = "%s/content/overrides/app-license.html" % SRCDIR
  
  JAR_MANIFESTS += ["jar.mn"]
diff --git a/src/browser/components/BrowserContentHandler-sys-mjs.patch b/src/browser/components/BrowserContentHandler-sys-mjs.patch
index 8e7db1a5d..84a6578af 100644
--- a/src/browser/components/BrowserContentHandler-sys-mjs.patch
+++ b/src/browser/components/BrowserContentHandler-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/BrowserContentHandler.sys.mjs b/browser/components/BrowserContentHandler.sys.mjs
-index 430c6877c81824d8ab318cacc997d4eda4cb6a11..e8a195e1fe09952b90a0d73d13c6c15da2006bd4 100644
+index 4bfb4199dafac004486dfc61db954173742a010a..542c156432b9d7c2190c0d14ce9cfd09814422bf 100644
 --- a/browser/components/BrowserContentHandler.sys.mjs
 +++ b/browser/components/BrowserContentHandler.sys.mjs
 @@ -603,6 +603,28 @@ nsBrowserContentHandler.prototype = {
diff --git a/src/browser/components/BrowserGlue-sys-mjs.patch b/src/browser/components/BrowserGlue-sys-mjs.patch
index 80870a8e2..c84c22483 100644
--- a/src/browser/components/BrowserGlue-sys-mjs.patch
+++ b/src/browser/components/BrowserGlue-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/BrowserGlue.sys.mjs b/browser/components/BrowserGlue.sys.mjs
-index af635211046f9f1b2d473a14e8170837cd0d93cd..f07514a7e3ab55aa3321f0a7c0c092e91c2961ce 100644
+index d07aaa3fbb8ccb02ae00d845649dc9c1d623cba5..68d3a4800f14fef5b5e7df9cd9afe3bc85358bed 100644
 --- a/browser/components/BrowserGlue.sys.mjs
 +++ b/browser/components/BrowserGlue.sys.mjs
 @@ -8,6 +8,7 @@ import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
diff --git a/src/browser/components/aboutlogins/content/aboutLogins-html.patch b/src/browser/components/aboutlogins/content/aboutLogins-html.patch
index e0b9b140d..aa3500b0e 100644
--- a/src/browser/components/aboutlogins/content/aboutLogins-html.patch
+++ b/src/browser/components/aboutlogins/content/aboutLogins-html.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/aboutlogins/content/aboutLogins.html b/browser/components/aboutlogins/content/aboutLogins.html
-index ca69defe40c57704ab6ec331ce11c95a98b03e8f..bc5be4555adbe3389bceee0f01730ee57f1e69ef 100644
+index 9bbf5e69b17139d5063977334a869db090af3de1..9778bf2843afbb60b470ee637534946e6f7917a8 100644
 --- a/browser/components/aboutlogins/content/aboutLogins.html
 +++ b/browser/components/aboutlogins/content/aboutLogins.html
 @@ -6,7 +6,7 @@
diff --git a/src/browser/components/aboutwelcome/content/aboutwelcome-css.patch b/src/browser/components/aboutwelcome/content/aboutwelcome-css.patch
index 076942b7b..3ed2f8d1e 100644
--- a/src/browser/components/aboutwelcome/content/aboutwelcome-css.patch
+++ b/src/browser/components/aboutwelcome/content/aboutwelcome-css.patch
@@ -1,20 +1,20 @@
 diff --git a/browser/components/aboutwelcome/content/aboutwelcome.css b/browser/components/aboutwelcome/content/aboutwelcome.css
-index 98497769b135efd3200607ee2cf50e82d06ed3fd..68e0778cfc4dc70935a3d48e79542b4133b293d2 100644
+index 4a568479995c43ec2801c5b2f9452610923233ed..857a4a0ed78f3d374ed45fc4ff73e8e51dfbc2b9 100644
 --- a/browser/components/aboutwelcome/content/aboutwelcome.css
 +++ b/browser/components/aboutwelcome/content/aboutwelcome.css
 @@ -330,6 +330,11 @@ panel#feature-callout {
-   --panel-shadow-margin: 6px;
-   --panel-arrow-space: calc(var(--panel-shadow-margin) + var(--arrow-visible-height) - 1.5px);
-   --panel-margin-offset: calc(-1 * (var(--panel-shadow-margin) + var(--arrow-corner-distance) + (var(--arrow-width) / 2)));
+   --panel-box-shadow-margin: 6px;
+   --panel-arrow-space: calc(var(--panel-box-shadow-margin) + var(--arrow-visible-height) - 1.5px);
+   --panel-margin-offset: calc(-1 * (var(--panel-box-shadow-margin) + var(--arrow-corner-distance) + (var(--arrow-width) / 2)));
 +
 +  @media -moz-pref("widget.macos.native-popovers") and (-moz-platform: macos) {
-+    --panel-shadow-margin: 0;
++    --panel-box-shadow-margin: 0;
 +    --panel-arrow-space: 0;
 +  }
  }
  
  panel#feature-callout::part(content) {
-@@ -517,6 +522,12 @@ div#feature-callout.hidden {
+@@ -518,6 +523,12 @@ div#feature-callout.hidden {
    width: 25em;
    gap: 16px;
    background: var(--fc-background);
@@ -27,7 +27,7 @@ index 98497769b135efd3200607ee2cf50e82d06ed3fd..68e0778cfc4dc70935a3d48e79542b41
  }
  #feature-callout .screen[pos=callout] .section-main .main-content .main-content-inner {
    gap: 12px;
-@@ -933,6 +944,10 @@ panel#feature-callout::part(content) {
+@@ -934,6 +945,10 @@ panel#feature-callout::part(content) {
    overflow: visible;
    transform: rotate(45deg);
    transform-style: preserve-3d;
diff --git a/src/browser/components/aiwindow/ui/modules/AIWindow-sys-mjs.patch b/src/browser/components/aiwindow/ui/modules/AIWindow-sys-mjs.patch
index f8d9df869..c4f1266bd 100644
--- a/src/browser/components/aiwindow/ui/modules/AIWindow-sys-mjs.patch
+++ b/src/browser/components/aiwindow/ui/modules/AIWindow-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/aiwindow/ui/modules/AIWindow.sys.mjs b/browser/components/aiwindow/ui/modules/AIWindow.sys.mjs
-index 97710ab0570a1a477ef4ed74a78c16448dfb7674..7d8ba5b1f2f330175fb57b906bb572fd7e1d36c8 100644
+index f6f1dd1f6b4d21d27e39b48bb7a57871ad5d019d..bf743120cf9f137cbe06d05896f706fb3d5b9435 100644
 --- a/browser/components/aiwindow/ui/modules/AIWindow.sys.mjs
 +++ b/browser/components/aiwindow/ui/modules/AIWindow.sys.mjs
-@@ -277,6 +277,7 @@ export const AIWindow = {
+@@ -287,6 +287,7 @@ export const AIWindow = {
    },
  
    _updateToolbarButtonPositions(win, { isToggling = false } = {}) {
diff --git a/src/browser/components/asrouter/modules/FeatureCallout-sys-mjs.patch b/src/browser/components/asrouter/modules/FeatureCallout-sys-mjs.patch
index dc9aaec7b..3a890147a 100644
--- a/src/browser/components/asrouter/modules/FeatureCallout-sys-mjs.patch
+++ b/src/browser/components/asrouter/modules/FeatureCallout-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/asrouter/modules/FeatureCallout.sys.mjs b/browser/components/asrouter/modules/FeatureCallout.sys.mjs
-index f176498a3130b61ac5e75fce8208d1b9eaf13f81..d133526ab5bf3db53e459c36d5f9a7ff37ef972f 100644
+index c4638d2d557f05fa6638cd379be8e0076336f8dc..2e25f485aa94485d12ca9e98aa4eaf56a06cf1f8 100644
 --- a/browser/components/asrouter/modules/FeatureCallout.sys.mjs
 +++ b/browser/components/asrouter/modules/FeatureCallout.sys.mjs
 @@ -778,6 +778,7 @@ export class FeatureCallout {
diff --git a/src/browser/components/customizableui/CustomizableUI-sys-mjs.patch b/src/browser/components/customizableui/CustomizableUI-sys-mjs.patch
index 861ba1f81..0dba1ca9b 100644
--- a/src/browser/components/customizableui/CustomizableUI-sys-mjs.patch
+++ b/src/browser/components/customizableui/CustomizableUI-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/customizableui/CustomizableUI.sys.mjs b/browser/components/customizableui/CustomizableUI.sys.mjs
-index 5905271a3343efa04b45f5d1a63bfca3de342755..37f57de0ad72271d4c6e188ab9841b23b95f08d0 100644
+index d5d4596739cde5d3d49d6294867f5da122c526b8..126474de8a38a11948c437703c875e98ff7c5f86 100644
 --- a/browser/components/customizableui/CustomizableUI.sys.mjs
 +++ b/browser/components/customizableui/CustomizableUI.sys.mjs
 @@ -13,6 +13,7 @@ ChromeUtils.defineESModuleGetters(lazy, {
@@ -120,7 +120,7 @@ index 5905271a3343efa04b45f5d1a63bfca3de342755..37f57de0ad72271d4c6e188ab9841b23
     *   The identifier string of the area that aNode is being inserted into.
     */
    insertWidgetBefore(aNode, aNextNode, aContainer, aAreaId) {
-+    if (aAreaId === CustomizableUI.AREA_NAVBAR && aNode.ownerGlobal.gZenVerticalTabsManager._hasSetSingleToolbar) {
++    if (aAreaId === CustomizableUI.AREA_NAVBAR && aNode.documentGlobal.gZenVerticalTabsManager._hasSetSingleToolbar) {
 +      aContainer = aNode.ownerDocument.getElementById("zen-sidebar-top-buttons-customization-target");
 +      aAreaId = "zen-sidebar-top-buttons";
 +    }
@@ -139,7 +139,7 @@ index 5905271a3343efa04b45f5d1a63bfca3de342755..37f57de0ad72271d4c6e188ab9841b23
 @@ -4573,7 +4571,7 @@ var CustomizableUIInternal = {
          if (area.get("type") == CustomizableUI.TYPE_TOOLBAR) {
            let defaultCollapsed = area.get("defaultCollapsed");
-           let win = areaNode.ownerGlobal;
+           let win = areaNode.documentGlobal;
 -          if (defaultCollapsed !== null) {
 +          if (defaultCollapsed !== null && !zenDontRebuildCollapsed) {
              win.setToolbarVisibility(
@@ -258,7 +258,7 @@ index 5905271a3343efa04b45f5d1a63bfca3de342755..37f57de0ad72271d4c6e188ab9841b23
        let targetID = this.#toolbar.getAttribute("addon-webext-overflowtarget");
        if (!targetID) {
 @@ -8161,6 +8199,9 @@ class OverflowableToolbar {
-       let win = this.#toolbar.ownerGlobal;
+       let win = this.#toolbar.documentGlobal;
        let { panel } = win.gUnifiedExtensions;
        this.#webExtListRef = panel.querySelector(`#${targetID}`);
 +      if (!this.#webExtListRef) {
diff --git a/src/browser/components/customizableui/CustomizeMode-sys-mjs.patch b/src/browser/components/customizableui/CustomizeMode-sys-mjs.patch
index 130d1e130..92098d116 100644
--- a/src/browser/components/customizableui/CustomizeMode-sys-mjs.patch
+++ b/src/browser/components/customizableui/CustomizeMode-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/customizableui/CustomizeMode.sys.mjs b/browser/components/customizableui/CustomizeMode.sys.mjs
-index e72ff7eab14f66ff4454850930a1d7266b3acefa..1a5d9c63b8942e8c20e9f91b82b5b11647b12ecc 100644
+index 25eb66b96a30c86e08376577f4636e159a02c76e..9b997ab559ddade67a7390539b3b4f9275c27a20 100644
 --- a/browser/components/customizableui/CustomizeMode.sys.mjs
 +++ b/browser/components/customizableui/CustomizeMode.sys.mjs
 @@ -503,7 +503,7 @@ export class CustomizeMode {
diff --git a/src/browser/components/customizableui/ToolbarContextMenu-sys-mjs.patch b/src/browser/components/customizableui/ToolbarContextMenu-sys-mjs.patch
index 3a849bafb..4bd0c7dd1 100644
--- a/src/browser/components/customizableui/ToolbarContextMenu-sys-mjs.patch
+++ b/src/browser/components/customizableui/ToolbarContextMenu-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/customizableui/ToolbarContextMenu.sys.mjs b/browser/components/customizableui/ToolbarContextMenu.sys.mjs
-index d5fd707b98e4b163a624c97ff4a8f2574e0b0180..b5d7e84c3567e83b95a6493e8333d3036dc88f36 100644
+index c3803a5d759eefb728fc0ec86af282bb5e2d5cc1..e4bc4242e05d28603f324133f338273fd76ee0b3 100644
 --- a/browser/components/customizableui/ToolbarContextMenu.sys.mjs
 +++ b/browser/components/customizableui/ToolbarContextMenu.sys.mjs
 @@ -183,7 +183,7 @@ export var ToolbarContextMenu = {
diff --git a/src/browser/components/customizableui/content/panelUI-inc-xhtml.patch b/src/browser/components/customizableui/content/panelUI-inc-xhtml.patch
index 2bf8a2602..28dfa5302 100644
--- a/src/browser/components/customizableui/content/panelUI-inc-xhtml.patch
+++ b/src/browser/components/customizableui/content/panelUI-inc-xhtml.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/customizableui/content/panelUI.inc.xhtml b/browser/components/customizableui/content/panelUI.inc.xhtml
-index 6cb22be6526b17d952a90fd414c49a31e9afde7a..84f8156e88027a79a40f14c77c83d6a2d19c8a72 100644
+index 5c248c0d49f3d9378260230c24ab60a4157dc438..1e87a1d040ed82c7edfb31f9e5853a4fb299b503 100644
 --- a/browser/components/customizableui/content/panelUI.inc.xhtml
 +++ b/browser/components/customizableui/content/panelUI.inc.xhtml
 @@ -139,7 +139,7 @@
diff --git a/src/browser/components/customizableui/content/panelUI-js.patch b/src/browser/components/customizableui/content/panelUI-js.patch
index 2b3f0d054..d4ea87a0c 100644
--- a/src/browser/components/customizableui/content/panelUI-js.patch
+++ b/src/browser/components/customizableui/content/panelUI-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/customizableui/content/panelUI.js b/browser/components/customizableui/content/panelUI.js
-index 5a469ce153dada011144fb4b66747c41e778ff1e..83bedb74df5b4064e8a0580f8b2ee9c0c27f81a8 100644
+index 140ea6eddd0d0c6817bbaabf2dc00083eaa11b13..0fe33867cf64d02b2b6e6db8b6844a4ea044ad33 100644
 --- a/browser/components/customizableui/content/panelUI.js
 +++ b/browser/components/customizableui/content/panelUI.js
 @@ -666,10 +666,12 @@ const PanelUI = {
diff --git a/src/browser/components/extensions/parent/ext-browser-js.patch b/src/browser/components/extensions/parent/ext-browser-js.patch
index 884ddfa16..05916d78b 100644
--- a/src/browser/components/extensions/parent/ext-browser-js.patch
+++ b/src/browser/components/extensions/parent/ext-browser-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/extensions/parent/ext-browser.js b/browser/components/extensions/parent/ext-browser.js
-index d1209bc2c828a19ade8cc027cdea6f42007f0de6..0a2def2f3c32618304cd8a263906b0c6e040dcbc 100644
+index aca5a23deda6b0f2316b0e108cff20ffd7feda67..a06c90937f97a4994b0807b54984089dbe627a71 100644
 --- a/browser/components/extensions/parent/ext-browser.js
 +++ b/browser/components/extensions/parent/ext-browser.js
 @@ -352,6 +352,7 @@ class TabTracker extends TabTrackerBase {
@@ -11,7 +11,7 @@ index d1209bc2c828a19ade8cc027cdea6f42007f0de6..0a2def2f3c32618304cd8a263906b0c6
      if (id) {
        return id;
 @@ -386,6 +387,7 @@ class TabTracker extends TabTrackerBase {
-     if (nativeTab.ownerGlobal.closed) {
+     if (nativeTab.documentGlobal.closed) {
        throw new Error("Cannot attach ID to a tab in a closed window.");
      }
 +    if (nativeTab.hasAttribute("zen-empty-tab")) return;
@@ -27,5 +27,5 @@ index d1209bc2c828a19ade8cc027cdea6f42007f0de6..0a2def2f3c32618304cd8a263906b0c6
 +    }
 +
      // Check private browsing access at browser window level.
-     if (!this.extension.canAccessWindow(nativeTab.ownerGlobal)) {
+     if (!this.extension.canAccessWindow(nativeTab.documentGlobal)) {
        return false;
diff --git a/src/browser/components/extensions/parent/ext-tabs-js.patch b/src/browser/components/extensions/parent/ext-tabs-js.patch
index 6c6573342..c0136e1e0 100644
--- a/src/browser/components/extensions/parent/ext-tabs-js.patch
+++ b/src/browser/components/extensions/parent/ext-tabs-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/extensions/parent/ext-tabs.js b/browser/components/extensions/parent/ext-tabs.js
-index 636e0f8cd1d489658833cf101152576e9fdb52af..e7578a059504b89a852061be037c323a107fe5ce 100644
+index 8f5fdecc9394d42a1460a1b73fb8c4e92f63c41e..82c03e234289c7b00f49f73854be45fb95fb91d7 100644
 --- a/browser/components/extensions/parent/ext-tabs.js
 +++ b/browser/components/extensions/parent/ext-tabs.js
 @@ -514,6 +514,7 @@ this.tabs = class extends ExtensionAPIPersistent {
diff --git a/src/browser/components/places/PlacesUIUtils-sys-mjs.patch b/src/browser/components/places/PlacesUIUtils-sys-mjs.patch
index 82c5b5b14..e31abe1c0 100644
--- a/src/browser/components/places/PlacesUIUtils-sys-mjs.patch
+++ b/src/browser/components/places/PlacesUIUtils-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/places/PlacesUIUtils.sys.mjs b/browser/components/places/PlacesUIUtils.sys.mjs
-index b21f7721dea2d485ccba1fd6fd7e65e17480e3d3..89048d9ea2b4edf2b0cab77f661c07f4d9453c3f 100644
+index 7c2786cc1be512ddfc165fb8f6514131ac033040..5846aff53030ef0fad2f87d017ba3713889b474d 100644
 --- a/browser/components/places/PlacesUIUtils.sys.mjs
 +++ b/browser/components/places/PlacesUIUtils.sys.mjs
 @@ -61,6 +61,7 @@ class BookmarkState {
diff --git a/src/browser/components/places/content/browserPlacesViews-js.patch b/src/browser/components/places/content/browserPlacesViews-js.patch
index f19671911..82f8e5fe2 100644
--- a/src/browser/components/places/content/browserPlacesViews-js.patch
+++ b/src/browser/components/places/content/browserPlacesViews-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/places/content/browserPlacesViews.js b/browser/components/places/content/browserPlacesViews.js
-index 463913926c58e6c622e0fcc60534921f02814829..0143c48c48e132464226db810f4ea4d2720c3c49 100644
+index 229e7960fc461475426b538f3a5fdc134a99ebcf..22b0eb8e23fc56cd4d8892e3ecebe389ea00ce1f 100644
 --- a/browser/components/places/content/browserPlacesViews.js
 +++ b/browser/components/places/content/browserPlacesViews.js
-@@ -328,12 +328,23 @@ class PlacesViewBase {
+@@ -343,12 +343,23 @@ class PlacesViewBase {
  
      this._cleanPopup(aPopup);
  
@@ -29,7 +29,7 @@ index 463913926c58e6c622e0fcc60534921f02814829..0143c48c48e132464226db810f4ea4d2
          this._insertNewItemToPopup(child, fragment);
        }
        aPopup.insertBefore(fragment, aPopup._endMarker);
-@@ -391,6 +402,7 @@ class PlacesViewBase {
+@@ -406,6 +417,7 @@ class PlacesViewBase {
            "scheme",
            PlacesUIUtils.guessUrlSchemeForUI(aPlacesNode.uri)
          );
@@ -37,7 +37,7 @@ index 463913926c58e6c622e0fcc60534921f02814829..0143c48c48e132464226db810f4ea4d2
        } else if (PlacesUtils.containerTypes.includes(type)) {
          element = document.createXULElement("menu");
          element.setAttribute("container", "true");
-@@ -1058,25 +1070,33 @@ class PlacesToolbar extends PlacesViewBase {
+@@ -1076,25 +1088,33 @@ class PlacesToolbar extends PlacesViewBase {
        this._rootElt.firstChild.remove();
      }
  
@@ -82,7 +82,7 @@ index 463913926c58e6c622e0fcc60534921f02814829..0143c48c48e132464226db810f4ea4d2
            );
            ++startIndex;
            if (elt.localName != "toolbarseparator") {
-@@ -1084,15 +1104,12 @@ class PlacesToolbar extends PlacesViewBase {
+@@ -1102,15 +1122,12 @@ class PlacesToolbar extends PlacesViewBase {
            }
          }
          if (!elt) {
@@ -101,7 +101,7 @@ index 463913926c58e6c622e0fcc60534921f02814829..0143c48c48e132464226db810f4ea4d2
          });
        });
  
-@@ -1102,7 +1119,7 @@ class PlacesToolbar extends PlacesViewBase {
+@@ -1120,7 +1137,7 @@ class PlacesToolbar extends PlacesViewBase {
  
        let fragment = document.createDocumentFragment();
        for (let i = startIndex; i < limit; ++i) {
@@ -110,7 +110,7 @@ index 463913926c58e6c622e0fcc60534921f02814829..0143c48c48e132464226db810f4ea4d2
        }
        await new Promise(resolve => window.requestAnimationFrame(resolve));
        if (!this._isAlive) {
-@@ -1165,6 +1182,8 @@ class PlacesToolbar extends PlacesViewBase {
+@@ -1183,6 +1200,8 @@ class PlacesToolbar extends PlacesViewBase {
            "scheme",
            PlacesUIUtils.guessUrlSchemeForUI(aChild.uri)
          );
@@ -119,7 +119,7 @@ index 463913926c58e6c622e0fcc60534921f02814829..0143c48c48e132464226db810f4ea4d2
        }
      }
  
-@@ -2359,7 +2378,7 @@ this.PlacesPanelview = class PlacesPanelview extends PlacesViewBase {
+@@ -2395,7 +2414,7 @@ this.PlacesPanelview = class PlacesPanelview extends PlacesViewBase {
          PlacesUIUtils.guessUrlSchemeForUI(placesNode.uri)
        );
        element.setAttribute("label", PlacesUIUtils.getBestTitle(placesNode));
diff --git a/src/browser/components/places/content/editBookmark-js.patch b/src/browser/components/places/content/editBookmark-js.patch
index 7dd2e0524..1336b432c 100644
--- a/src/browser/components/places/content/editBookmark-js.patch
+++ b/src/browser/components/places/content/editBookmark-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/places/content/editBookmark.js b/browser/components/places/content/editBookmark.js
-index 0fb2225d0fadd27e9e7851be77f18afe7d053c80..347203d6ea9cab3cb803f28515613229b6a454b3 100644
+index f5df770e7c03446c2d23664b9100e12149ea7a59..398ae5b75a27aec60341f3058310013dcf6138d6 100644
 --- a/browser/components/places/content/editBookmark.js
 +++ b/browser/components/places/content/editBookmark.js
-@@ -387,6 +387,10 @@ var gEditItemOverlay = {
+@@ -389,6 +389,10 @@ var gEditItemOverlay = {
          this._keywordField.readOnly = this.readOnly;
        }
  
@@ -13,7 +13,7 @@ index 0fb2225d0fadd27e9e7851be77f18afe7d053c80..347203d6ea9cab3cb803f28515613229
        // Collapse the tag selector if the item does not accept tags.
        if (showOrCollapse("tagsRow", isBookmark || bulkTagging, "tags")) {
          this._initTagsField();
-@@ -693,6 +697,7 @@ var gEditItemOverlay = {
+@@ -702,6 +706,7 @@ var gEditItemOverlay = {
        if (this._paneInfo.isBookmark) {
          options.tags = this._element("tagsField").value;
          options.keyword = this._keyword;
@@ -21,7 +21,7 @@ index 0fb2225d0fadd27e9e7851be77f18afe7d053c80..347203d6ea9cab3cb803f28515613229
        }
  
        if (this._paneInfo.bulkTagging) {
-@@ -1178,6 +1183,9 @@ var gEditItemOverlay = {
+@@ -1190,6 +1195,9 @@ var gEditItemOverlay = {
            case "editBMPanel_tagsSelectorExpander":
              this.toggleTagsSelector().catch(console.error);
              break;
@@ -31,7 +31,7 @@ index 0fb2225d0fadd27e9e7851be77f18afe7d053c80..347203d6ea9cab3cb803f28515613229
          }
          break;
      }
-@@ -1256,6 +1264,128 @@ var gEditItemOverlay = {
+@@ -1268,6 +1276,128 @@ var gEditItemOverlay = {
    get bookmarkState() {
      return this._bookmarkState;
    },
@@ -160,7 +160,7 @@ index 0fb2225d0fadd27e9e7851be77f18afe7d053c80..347203d6ea9cab3cb803f28515613229
  };
  
  ChromeUtils.defineLazyGetter(gEditItemOverlay, "_folderTree", () => {
-@@ -1294,6 +1424,9 @@ for (let elt of [
+@@ -1306,6 +1436,9 @@ for (let elt of [
    "locationField",
    "keywordField",
    "tagsField",
diff --git a/src/browser/components/places/content/editBookmarkPanel-inc-xhtml.patch b/src/browser/components/places/content/editBookmarkPanel-inc-xhtml.patch
index 11cd754f0..1d4aa7101 100644
--- a/src/browser/components/places/content/editBookmarkPanel-inc-xhtml.patch
+++ b/src/browser/components/places/content/editBookmarkPanel-inc-xhtml.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/places/content/editBookmarkPanel.inc.xhtml b/browser/components/places/content/editBookmarkPanel.inc.xhtml
-index 40366677b60123c66bf0739d1b2374b423d3061c..a2774e99726407d95011126ea2a272f08eaf0961 100644
+index eb23018327ff6eef7c28683d695bcf610fcc87d2..6627c4b5594d440527208236f784365b06a79411 100644
 --- a/browser/components/places/content/editBookmarkPanel.inc.xhtml
 +++ b/browser/components/places/content/editBookmarkPanel.inc.xhtml
 @@ -12,14 +12,15 @@
@@ -20,7 +20,7 @@ index 40366677b60123c66bf0739d1b2374b423d3061c..a2774e99726407d95011126ea2a272f0
    <label data-l10n-id="bookmark-overlay-location-2"
           class="editBMPanel_folderRow hideable"
           control="editBMPanel_folderMenuList"/>
-@@ -47,7 +48,25 @@
+@@ -49,7 +50,25 @@
              class="expander-down panel-button"
              data-l10n-id="bookmark-overlay-folders-expander2"/>
    </hbox>
diff --git a/src/browser/components/preferences/jar-mn.patch b/src/browser/components/preferences/jar-mn.patch
index 5afab00b9..da20fdc1f 100644
--- a/src/browser/components/preferences/jar-mn.patch
+++ b/src/browser/components/preferences/jar-mn.patch
@@ -1,10 +1,12 @@
 diff --git a/browser/components/preferences/jar.mn b/browser/components/preferences/jar.mn
-index 78e38f98c1f69df31459fd4b6a119c93f6509c02..33abd46566146272da9f561e11ffa290d7000111 100644
+index aec7888f59eeb5dbffc62b861fe223159ac42586..a593f3015469c11c762ae01465964251a77ddb45 100644
 --- a/browser/components/preferences/jar.mn
 +++ b/browser/components/preferences/jar.mn
-@@ -54,3 +54,5 @@ browser.jar:
-    content/browser/preferences/widgets/sync-device-name.mjs          (widgets/sync-device-name/sync-device-name.mjs)
-    content/browser/preferences/widgets/sync-engines-list.mjs          (widgets/sync-engine-list/sync-engines-list.mjs)
+@@ -69,5 +69,7 @@ browser.jar:
     content/browser/preferences/widgets/sync-engines-list.css          (widgets/sync-engine-list/sync-engines-list.css)
+    content/browser/preferences/widgets/update-information.mjs          (widgets/update-information/update-information.mjs)
+    content/browser/preferences/widgets/update-information.css          (widgets/update-information/update-information.css)
 +
 +   content/browser/preferences/zen-settings.js
+    content/browser/preferences/widgets/update-state.mjs          (widgets/update-state/update-state.mjs)
+    content/browser/preferences/widgets/update-state.css          (widgets/update-state/update-state.css)
diff --git a/src/browser/components/preferences/main-inc-xhtml.patch b/src/browser/components/preferences/main-inc-xhtml.patch
index d39e60b2c..18b787517 100644
--- a/src/browser/components/preferences/main-inc-xhtml.patch
+++ b/src/browser/components/preferences/main-inc-xhtml.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/preferences/main.inc.xhtml b/browser/components/preferences/main.inc.xhtml
-index 6b96ff01e43087f8c609df17204441616b7013f3..df85ec789c54146b3a702169f33adf36c11b85da 100644
+index f6badc31b612c9198c56bb06751e9bbc4a0dd54b..5f9eca1ad0795ac38c02449c91e9f61bf6661252 100644
 --- a/browser/components/preferences/main.inc.xhtml
 +++ b/browser/components/preferences/main.inc.xhtml
-@@ -96,6 +96,7 @@
+@@ -98,6 +98,7 @@
                languages-customize-add.label,
              " />
    </hbox>
diff --git a/src/browser/components/preferences/main-js.patch b/src/browser/components/preferences/main-js.patch
index 0b7dde0dd..e5053ab79 100644
--- a/src/browser/components/preferences/main-js.patch
+++ b/src/browser/components/preferences/main-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/preferences/main.js b/browser/components/preferences/main.js
-index 6f4cb34d1639ac76a6d4ca40f0d33ae6fb6bf565..1f336a09d6f2e367effdf26e8baf58b5686d252d 100644
+index c86e54bb6f5e00d9d7bdd81154857a5be97f909c..4035f6a667a361ad106e816a172342724a770435 100644
 --- a/browser/components/preferences/main.js
 +++ b/browser/components/preferences/main.js
-@@ -2537,6 +2537,11 @@ function createStartupConfig(hidden = false) {
+@@ -643,6 +643,11 @@ function createStartupConfig(hidden = false) {
          id: "browserRestoreSession",
          l10nId: "startup-restore-windows-and-tabs",
        },
@@ -14,16 +14,16 @@ index 6f4cb34d1639ac76a6d4ca40f0d33ae6fb6bf565..1f336a09d6f2e367effdf26e8baf58b5
        {
          id: "windowsLaunchOnLogin",
          l10nId: "windows-launch-on-login",
-@@ -2578,7 +2583,7 @@ function createStartupConfig(hidden = false) {
+@@ -690,7 +695,7 @@ function createStartupConfig(hidden = false) {
  SettingGroupManager.registerGroups({
    defaultBrowser: createDefaultBrowserConfig(),
    startup: createStartupConfig(
--    Services.prefs.getBoolPref("browser.settings-redesign.enabled", false)
+-    Services.prefs.getBoolPref("browser-settings-redesign.enabled", false)
 +    false
    ),
-   zoom: {
-     l10nId: "preferences-zoom-header2",
-@@ -3393,7 +3398,7 @@ function getBundleForLocales(newLocales) {
+ });
+ 
+@@ -743,7 +748,7 @@ function getBundleForLocales(newLocales) {
      ])
    );
    return new Localization(
diff --git a/src/browser/components/preferences/preferences-js.patch b/src/browser/components/preferences/preferences-js.patch
index cc43e40ca..e57210221 100644
--- a/src/browser/components/preferences/preferences-js.patch
+++ b/src/browser/components/preferences/preferences-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/preferences/preferences.js b/browser/components/preferences/preferences.js
-index 9d13733318e7a147adee1e44f96570c94f4948df..fb625d8da021dc0cebd7a14ca47446a0632e8e7a 100644
+index 57add34d876fb885275f1147209c6fbeee367a7c..d4c64b9ec8b6d1e6e0bd0b888c6e7351fbe299a4 100644
 --- a/browser/components/preferences/preferences.js
 +++ b/browser/components/preferences/preferences.js
-@@ -121,6 +121,7 @@ ChromeUtils.defineLazyGetter(this, "gSubDialog", function () {
+@@ -132,6 +132,7 @@ ChromeUtils.defineLazyGetter(this, "gSubDialog", function () {
        styleSheets: [
          "chrome://browser/skin/preferences/dialog.css",
          "chrome://browser/skin/preferences/preferences.css",
@@ -10,7 +10,7 @@ index 9d13733318e7a147adee1e44f96570c94f4948df..fb625d8da021dc0cebd7a14ca47446a0
        ],
        resizeCallback: async ({ title, frame }) => {
          // Search within main document and highlight matched keyword.
-@@ -398,6 +399,10 @@ function init_all() {
+@@ -522,6 +523,10 @@ function init_all() {
    register_module("paneSearch", gSearchPane);
    register_module("panePrivacy", gPrivacyPane);
    register_module("paneContainers", gContainersPane);
@@ -19,5 +19,5 @@ index 9d13733318e7a147adee1e44f96570c94f4948df..fb625d8da021dc0cebd7a14ca47446a0
 +  register_module("paneZenCKS", gZenCKSSettings);
 +  register_module("paneZenMarketplace", gZenMarketplaceManager);
  
-   if (ExperimentAPI.labsEnabled) {
-     // Set hidden based on previous load's hidden value or if Nimbus is
+   // Restore the cached Firefox Labs nav button visibility so it shows
+   // immediately when recipes are expected to be available, before
diff --git a/src/browser/components/preferences/preferences-xhtml.patch b/src/browser/components/preferences/preferences-xhtml.patch
index f8d7c6b7e..dccd50ec5 100644
--- a/src/browser/components/preferences/preferences-xhtml.patch
+++ b/src/browser/components/preferences/preferences-xhtml.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/preferences/preferences.xhtml b/browser/components/preferences/preferences.xhtml
-index 3c4b3225c672bcb172e7f946bc5f98d424e21e84..d10824470c564b6631333f197de897c21ccc19f5 100644
+index 9760a4a35b0b3bd21edec07a70c10bccc23e4a09..9f22146c259ea5b45005be660bfcb9ea2c1297ee 100644
 --- a/browser/components/preferences/preferences.xhtml
 +++ b/browser/components/preferences/preferences.xhtml
 @@ -42,6 +42,8 @@
@@ -11,7 +11,7 @@ index 3c4b3225c672bcb172e7f946bc5f98d424e21e84..d10824470c564b6631333f197de897c2
    <link rel="localization" href="branding/brand.ftl"/>
    <link rel="localization" href="browser/browser.ftl"/>
      <!-- Used by fontbuilder.js -->
-@@ -126,6 +128,26 @@
+@@ -121,6 +123,26 @@
          iconsrc="chrome://browser/skin/preferences/category-general.svg"
          data-l10n-id="pane-general-title">
        </html:moz-page-nav-button>
@@ -35,12 +35,12 @@ index 3c4b3225c672bcb172e7f946bc5f98d424e21e84..d10824470c564b6631333f197de897c2
 +        iconsrc="chrome://mozapps/skin/extensions/category-themes.svg"
 +        data-l10n-id="pane-zen-marketplace-title">
 +      </html:moz-page-nav-button>
-       <html:moz-page-nav-button id="category-home"
-         view="paneHome"
-         iconsrc="chrome://browser/skin/home.svg"
-@@ -218,6 +240,10 @@
+       <html:moz-page-nav-button id="category-sync"
+         hidden="true"
+         view="paneSync"
+@@ -253,6 +275,10 @@
+ #include containers.inc.xhtml
  #include sync.inc.xhtml
- #include experimental.inc.xhtml
  #include moreFromMozilla.inc.xhtml
 +#include zenLooksAndFeel.inc.xhtml
 +#include zenKeyboardShortcuts.inc.xhtml
diff --git a/src/browser/components/search/SearchOneOffs-sys-mjs.patch b/src/browser/components/search/SearchOneOffs-sys-mjs.patch
index ed2cd3169..5b62f950e 100644
--- a/src/browser/components/search/SearchOneOffs-sys-mjs.patch
+++ b/src/browser/components/search/SearchOneOffs-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/search/SearchOneOffs.sys.mjs b/browser/components/search/SearchOneOffs.sys.mjs
-index 6317d8e22342bf50c82e5b526253d43406e74428..f233584b4a863309f71806cf7a3ee8e06f043429 100644
+index ca79f060e2104a56b42b9d813efb3567e183153e..7936263cc7d2796e1ec20dcfd1f14b2add568a64 100644
 --- a/browser/components/search/SearchOneOffs.sys.mjs
 +++ b/browser/components/search/SearchOneOffs.sys.mjs
-@@ -482,7 +482,7 @@ export class SearchOneOffs {
+@@ -481,7 +481,7 @@ export class SearchOneOffs {
      // For the search-bar, always show the one-off buttons where there is an
      // option to add an engine.
      let addEngineNeeded = isSearchBar && addEngines.length;
diff --git a/src/browser/components/sessionstore/SessionStore-sys-mjs.patch b/src/browser/components/sessionstore/SessionStore-sys-mjs.patch
index cffcf3b1a..02f1ac127 100644
--- a/src/browser/components/sessionstore/SessionStore-sys-mjs.patch
+++ b/src/browser/components/sessionstore/SessionStore-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/sessionstore/SessionStore.sys.mjs b/browser/components/sessionstore/SessionStore.sys.mjs
-index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea30f7d70a 100644
+index 183543c5f29ff4c879d3058e4c09faf376a69cb7..ab482c32cc697ccef82bf0aeaa0e3a1db40aecce 100644
 --- a/browser/components/sessionstore/SessionStore.sys.mjs
 +++ b/browser/components/sessionstore/SessionStore.sys.mjs
 @@ -129,6 +129,9 @@ const TAB_EVENTS = [
@@ -21,7 +21,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  });
  
  ChromeUtils.defineLazyGetter(lazy, "blankURI", () => {
-@@ -1291,10 +1296,7 @@ var SessionStoreInternal = {
+@@ -1287,10 +1292,7 @@ var SessionStoreInternal = {
     */
    get willAutoRestore() {
      return (
@@ -33,7 +33,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
      );
    },
  
-@@ -1970,6 +1972,9 @@ var SessionStoreInternal = {
+@@ -1965,6 +1967,9 @@ var SessionStoreInternal = {
        case "TabPinned":
        case "TabUnpinned":
        case "SwapDocShells":
@@ -43,7 +43,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
          this.saveStateDelayed(win);
          break;
        case "TabGroupCreate":
-@@ -2083,6 +2088,10 @@ var SessionStoreInternal = {
+@@ -2074,6 +2079,10 @@ var SessionStoreInternal = {
        this._windows[aWindow.__SSi].isTaskbarTab = true;
      }
  
@@ -54,7 +54,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
      if (lazy.AIWindow.isAIWindowActiveAndEnabled(aWindow)) {
        this._windows[aWindow.__SSi].isAIWindow = true;
      }
-@@ -2119,7 +2128,7 @@ var SessionStoreInternal = {
+@@ -2110,7 +2119,7 @@ var SessionStoreInternal = {
      let isTaskbarTab = this._windows[aWindow.__SSi].isTaskbarTab;
      // A regular window is not a private window, taskbar tab window, or popup window
      let isRegularWindow =
@@ -63,7 +63,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  
      // perform additional initialization when the first window is loading
      if (lazy.RunState.isStopped) {
-@@ -2131,7 +2140,7 @@ var SessionStoreInternal = {
+@@ -2122,7 +2131,7 @@ var SessionStoreInternal = {
          // to disk to NOW() to enforce a full interval before the next write.
          lazy.SessionSaver.updateLastSaveTime();
  
@@ -72,7 +72,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
            this._log.debug(
              "initializeWindow, the window is private or a web app. Saving SessionStartup.state for possibly restoring later"
            );
-@@ -2173,6 +2182,7 @@ var SessionStoreInternal = {
+@@ -2164,6 +2173,7 @@ var SessionStoreInternal = {
            null,
            "sessionstore-one-or-no-tab-restored"
          );
@@ -80,7 +80,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
          this._deferredAllWindowsRestored.resolve();
        }
        // this window was opened by _openWindowWithState
-@@ -2222,7 +2232,6 @@ var SessionStoreInternal = {
+@@ -2213,7 +2223,6 @@ var SessionStoreInternal = {
        if (closedWindowState) {
          let newWindowState;
          if (
@@ -88,7 +88,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
            !lazy.SessionStartup.willRestore()
          ) {
            // We want to split the window up into pinned tabs and unpinned tabs.
-@@ -2258,6 +2267,7 @@ var SessionStoreInternal = {
+@@ -2249,6 +2258,7 @@ var SessionStoreInternal = {
          }
  
          if (newWindowState) {
@@ -96,7 +96,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
            // Ensure that the window state isn't hidden
            this._restoreCount = 1;
            let state = { windows: [newWindowState] };
-@@ -2286,6 +2296,15 @@ var SessionStoreInternal = {
+@@ -2277,6 +2287,15 @@ var SessionStoreInternal = {
        });
        this._shouldRestoreLastSession = false;
      }
@@ -112,7 +112,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  
      if (this._restoreLastWindow && aWindow.toolbar.visible) {
        // always reset (if not a popup window)
-@@ -2436,7 +2455,7 @@ var SessionStoreInternal = {
+@@ -2427,7 +2446,7 @@ var SessionStoreInternal = {
  
      var tabbrowser = aWindow.gBrowser;
  
@@ -121,7 +121,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  
      TAB_EVENTS.forEach(function (aEvent) {
        tabbrowser.tabContainer.removeEventListener(aEvent, this, true);
-@@ -2487,7 +2506,7 @@ var SessionStoreInternal = {
+@@ -2478,7 +2497,7 @@ var SessionStoreInternal = {
  
        let isLastRegularWindow =
          Object.values(this._windows).filter(
@@ -130,7 +130,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
          ).length == 1;
        this._log.debug(
          `onClose, closing window isLastRegularWindow? ${isLastRegularWindow}`
-@@ -2544,8 +2563,8 @@ var SessionStoreInternal = {
+@@ -2535,8 +2554,8 @@ var SessionStoreInternal = {
        // 2) Flush the window.
        // 3) When the flush is complete, revisit our decision to store the window
        //    in _closedWindows, and add/remove as necessary.
@@ -141,7 +141,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
        }
  
        completionPromise = lazy.TabStateFlusher.flushWindow(aWindow).then(() => {
-@@ -2565,8 +2584,9 @@ var SessionStoreInternal = {
+@@ -2556,8 +2575,9 @@ var SessionStoreInternal = {
  
          // Save non-private windows if they have at
          // least one saveable tab or are the last window.
@@ -153,7 +153,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  
            if (!isLastWindow && winData.closedId > -1) {
              this._addClosedAction(
-@@ -2642,7 +2662,7 @@ var SessionStoreInternal = {
+@@ -2633,7 +2653,7 @@ var SessionStoreInternal = {
     *        to call this method again asynchronously (for example, after
     *        a window flush).
     */
@@ -162,7 +162,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
      // Make sure SessionStore is still running, and make sure that we
      // haven't chosen to forget this window.
      if (
-@@ -2659,6 +2679,7 @@ var SessionStoreInternal = {
+@@ -2650,6 +2670,7 @@ var SessionStoreInternal = {
        // _closedWindows from a previous call to this function.
        let winIndex = this._closedWindows.indexOf(winData);
        let alreadyStored = winIndex != -1;
@@ -170,7 +170,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
        // If sidebar command is truthy, i.e. sidebar is open, store sidebar settings
        let shouldStore = hasSaveableTabs || isLastWindow;
  
-@@ -3480,7 +3501,7 @@ var SessionStoreInternal = {
+@@ -3467,7 +3488,7 @@ var SessionStoreInternal = {
      if (!isPrivateWindow && tabState.isPrivate) {
        return;
      }
@@ -179,7 +179,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
        return;
      }
  
-@@ -4220,6 +4241,12 @@ var SessionStoreInternal = {
+@@ -4206,6 +4227,12 @@ var SessionStoreInternal = {
          Math.min(tabState.index, tabState.entries.length)
        );
        tabState.pinned = false;
@@ -192,7 +192,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  
        if (inBackground === false) {
          aWindow.gBrowser.selectedTab = newTab;
-@@ -4656,6 +4683,8 @@ var SessionStoreInternal = {
+@@ -4642,6 +4669,8 @@ var SessionStoreInternal = {
        // Append the tab if we're opening into a different window,
        tabIndex: aSource == aTargetWindow ? pos : Infinity,
        pinned: state.pinned,
@@ -201,7 +201,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
        userContextId: state.userContextId,
        skipLoad: true,
        preferredRemoteType,
-@@ -5160,9 +5189,10 @@ var SessionStoreInternal = {
+@@ -5146,9 +5175,10 @@ var SessionStoreInternal = {
        if (activePageData.title && activePageData.title != activePageData.url) {
          win.gBrowser.setInitialTabTitle(tab, activePageData.title, {
            isContentTitle: true,
@@ -213,7 +213,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
        }
      }
  
-@@ -5527,7 +5557,7 @@ var SessionStoreInternal = {
+@@ -5513,7 +5543,7 @@ var SessionStoreInternal = {
  
      for (let i = tabbrowser.pinnedTabCount; i < tabbrowser.tabs.length; i++) {
        let tab = tabbrowser.tabs[i];
@@ -222,7 +222,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
          removableTabs.push(tab);
        }
      }
-@@ -5640,7 +5670,7 @@ var SessionStoreInternal = {
+@@ -5626,7 +5656,7 @@ var SessionStoreInternal = {
  
      // collect the data for all windows
      for (ix in this._windows) {
@@ -231,7 +231,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
          // window data is still in _statesToRestore
          continue;
        }
-@@ -5784,11 +5814,12 @@ var SessionStoreInternal = {
+@@ -5770,11 +5800,12 @@ var SessionStoreInternal = {
      }
  
      let tabbrowser = aWindow.gBrowser;
@@ -245,7 +245,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
      // update the internal state data for this window
      for (let tab of tabs) {
        if (tab == aWindow.FirefoxViewHandler.tab) {
-@@ -5799,6 +5830,9 @@ var SessionStoreInternal = {
+@@ -5785,6 +5816,9 @@ var SessionStoreInternal = {
        tabsData.push(tabData);
      }
  
@@ -255,7 +255,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
      // update tab group state for this window
      winData.groups = [];
      for (let tabGroup of aWindow.gBrowser.tabGroups) {
-@@ -5815,7 +5849,7 @@ var SessionStoreInternal = {
+@@ -5801,7 +5835,7 @@ var SessionStoreInternal = {
      // a window is closed, point to the first item in the tab strip instead (it will never be the Firefox View tab,
      // since it's only inserted into the tab strip after it's selected).
      if (aWindow.FirefoxViewHandler.tab?.selected) {
@@ -264,7 +264,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
        winData.title = tabbrowser.tabs[0].label;
      }
      winData.selected = selectedIndex;
-@@ -6017,8 +6051,8 @@ var SessionStoreInternal = {
+@@ -6003,8 +6037,8 @@ var SessionStoreInternal = {
      // selectTab represents.
      let selectTab = 0;
      if (overwriteTabs) {
@@ -275,7 +275,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
        selectTab = Math.min(selectTab, winData.tabs.length);
      }
  
-@@ -6040,6 +6074,7 @@ var SessionStoreInternal = {
+@@ -6026,6 +6060,7 @@ var SessionStoreInternal = {
      if (overwriteTabs) {
        for (let i = tabbrowser.browsers.length - 1; i >= 0; i--) {
          if (!tabbrowser.tabs[i].selected) {
@@ -283,7 +283,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
            tabbrowser.removeTab(tabbrowser.tabs[i]);
          }
        }
-@@ -6074,6 +6109,12 @@ var SessionStoreInternal = {
+@@ -6060,6 +6095,12 @@ var SessionStoreInternal = {
          savedTabGroup => !openTabGroupIdsInWindow.has(savedTabGroup.id)
        );
      }
@@ -296,7 +296,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  
      // Move the originally open tabs to the end.
      if (initialTabs) {
-@@ -6640,6 +6681,25 @@ var SessionStoreInternal = {
+@@ -6626,6 +6667,25 @@ var SessionStoreInternal = {
  
      // Most of tabData has been restored, now continue with restoring
      // attributes that may trigger external events.
@@ -322,7 +322,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  
      if (tabData.pinned) {
        tabbrowser.pinTab(tab);
-@@ -6807,6 +6867,9 @@ var SessionStoreInternal = {
+@@ -6793,6 +6853,9 @@ var SessionStoreInternal = {
          aWindow.gURLBar.readOnly = false;
        }
      }
@@ -332,7 +332,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
  
      let promiseParts = Promise.withResolvers();
      aWindow.setTimeout(() => {
-@@ -7602,7 +7665,7 @@ var SessionStoreInternal = {
+@@ -7588,7 +7651,7 @@ var SessionStoreInternal = {
  
        let groupsToSave = new Map();
        for (let tIndex = 0; tIndex < window.tabs.length; ) {
@@ -341,7 +341,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
            // Adjust window.selected
            if (tIndex + 1 < window.selected) {
              window.selected -= 1;
-@@ -7617,7 +7680,7 @@ var SessionStoreInternal = {
+@@ -7603,7 +7666,7 @@ var SessionStoreInternal = {
            );
            // We don't want to increment tIndex here.
            continue;
@@ -350,7 +350,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
            // Convert any open groups into saved groups.
            let groupStateToSave = window.groups.find(
              groupState => groupState.id == window.tabs[tIndex].groupId
-@@ -8076,7 +8139,6 @@ var SessionStoreInternal = {
+@@ -8062,7 +8125,6 @@ var SessionStoreInternal = {
      timer.initWithCallback(
        function () {
          if (beats <= 0) {
@@ -358,7 +358,7 @@ index 95f4960c3d8a2a4ca9bce24bcc54971877ee55ca..5bef8eeeb7cc26c930e3884e6eede6ea
            Glean.sessionRestore.shutdownFlushAllOutcomes.timed_out.add(1);
            deferred.resolve();
          }
-@@ -8554,6 +8616,7 @@ var SessionStoreInternal = {
+@@ -8540,6 +8602,7 @@ var SessionStoreInternal = {
      if (
        !savedTabGroupState.tabs.length ||
        this.getSavedTabGroup(savedTabGroupState.id)
diff --git a/src/browser/components/sessionstore/TabState-sys-mjs.patch b/src/browser/components/sessionstore/TabState-sys-mjs.patch
index a0916b716..ea08f3598 100644
--- a/src/browser/components/sessionstore/TabState-sys-mjs.patch
+++ b/src/browser/components/sessionstore/TabState-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/sessionstore/TabState.sys.mjs b/browser/components/sessionstore/TabState.sys.mjs
-index eb24c3ffdd2cfb33379aca993af5171fdb91ac2c..15d3fbff397df23f112355e22ca5dba5bf29528f 100644
+index 4ba4dda363b602cb6f4445ef056f2f9abb1b0e1e..6b4b407e05e26faca69d9d7ac6f31510620898fe 100644
 --- a/browser/components/sessionstore/TabState.sys.mjs
 +++ b/browser/components/sessionstore/TabState.sys.mjs
-@@ -99,7 +99,25 @@ class _TabState {
+@@ -99,10 +99,28 @@ class _TabState {
        }
      }
  
@@ -21,8 +21,11 @@ index eb24c3ffdd2cfb33379aca993af5171fdb91ac2c..15d3fbff397df23f112355e22ca5dba5
 +    tabData._zenIsActiveTab = tab._zenContentsVisible;
 +    tabData.zenLiveFolderItemId = tab.getAttribute("zen-live-folder-item-id");
 +
-     tabData.searchMode = tab.ownerGlobal.gURLBar.getSearchMode(browser, true);
-+    if (tabData.searchMode?.source === tab.ownerGlobal.UrlbarUtils.RESULT_SOURCE.ZEN_ACTIONS) {
+     tabData.searchMode = tab.documentGlobal.gURLBar.getSearchMode(
+       browser,
+       true
+     );
++    if (tabData.searchMode?.source === tab.documentGlobal.UrlbarUtils.RESULT_SOURCE.ZEN_ACTIONS) {
 +      delete tabData.searchMode;
 +    }
  
diff --git a/src/browser/components/sidebar/browser-sidebar-js.patch b/src/browser/components/sidebar/browser-sidebar-js.patch
index 15a387fdb..a2bfcec8a 100644
--- a/src/browser/components/sidebar/browser-sidebar-js.patch
+++ b/src/browser/components/sidebar/browser-sidebar-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/sidebar/browser-sidebar.js b/browser/components/sidebar/browser-sidebar.js
-index 2c13f19ec4f962ce3ecaface0ae5d00c50ca913f..eb696819a1af4cfae6352fc5696fd95590bed342 100644
+index ef7b67413392840720c8f09b6f22b0413ccf4435..ebbc15722ffb410050dd1923e8bb49d8cd5b6a9e 100644
 --- a/browser/components/sidebar/browser-sidebar.js
 +++ b/browser/components/sidebar/browser-sidebar.js
-@@ -834,7 +834,7 @@ var SidebarController = {
+@@ -850,7 +850,7 @@ var SidebarController = {
    setPosition() {
      // First reset all ordinals to match DOM ordering.
      let contentArea = document.getElementById("tabbrowser-tabbox");
diff --git a/src/browser/components/tabbrowser/AsyncTabSwitcher-sys-mjs.patch b/src/browser/components/tabbrowser/AsyncTabSwitcher-sys-mjs.patch
index 74ffbfe55..c65a76f11 100644
--- a/src/browser/components/tabbrowser/AsyncTabSwitcher-sys-mjs.patch
+++ b/src/browser/components/tabbrowser/AsyncTabSwitcher-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/tabbrowser/AsyncTabSwitcher.sys.mjs b/browser/components/tabbrowser/AsyncTabSwitcher.sys.mjs
-index eebff0f59df42d3ef075f3eea1bd9269c47ba80d..6ab43a810f4cb61eedc02bb42026f6b5e282e785 100644
+index 577e27598597de27116153be1ad149facd721e41..eeca455aad8323ef24957af076f131cb70d66e7d 100644
 --- a/browser/components/tabbrowser/AsyncTabSwitcher.sys.mjs
 +++ b/browser/components/tabbrowser/AsyncTabSwitcher.sys.mjs
 @@ -938,6 +938,7 @@ export class AsyncTabSwitcher {
diff --git a/src/browser/components/tabbrowser/TabsList-sys-mjs.patch b/src/browser/components/tabbrowser/TabsList-sys-mjs.patch
index 1815399e6..d86a33845 100644
--- a/src/browser/components/tabbrowser/TabsList-sys-mjs.patch
+++ b/src/browser/components/tabbrowser/TabsList-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/tabbrowser/TabsList.sys.mjs b/browser/components/tabbrowser/TabsList.sys.mjs
-index 4de5139f404fab227874f626bda27e2a32cf87a0..7574e6db1606c72e8da3141d4a8deec727376af8 100644
+index 58f91dd9f80aa34ff8d8095cbaf5ae7a6c8dc1e1..c4c9ad5d93053f5fc726a0b10fa8d56c6bbc4003 100644
 --- a/browser/components/tabbrowser/TabsList.sys.mjs
 +++ b/browser/components/tabbrowser/TabsList.sys.mjs
 @@ -87,7 +87,7 @@ class TabsListBase {
diff --git a/src/browser/components/tabbrowser/content/drag-and-drop-js.patch b/src/browser/components/tabbrowser/content/drag-and-drop-js.patch
index c928d9446..7e219803a 100644
--- a/src/browser/components/tabbrowser/content/drag-and-drop-js.patch
+++ b/src/browser/components/tabbrowser/content/drag-and-drop-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/tabbrowser/content/drag-and-drop.js b/browser/components/tabbrowser/content/drag-and-drop.js
-index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c85280e74993 100644
+index 8bb1219962a1368f50b53c61041f135c68e35f31..8e72441d26883cbef7a352b00c0fe2b15a030046 100644
 --- a/browser/components/tabbrowser/content/drag-and-drop.js
 +++ b/browser/components/tabbrowser/content/drag-and-drop.js
 @@ -35,6 +35,9 @@
@@ -159,7 +159,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
        if (
          dt.mozUserCancelled ||
          dt.dropEffect != "none" ||
-@@ -918,11 +938,10 @@
+@@ -927,11 +947,10 @@
          return this.#getHorizontalScrollboxDragTarget(event, ignoreSides);
        }
        while (target) {
@@ -175,7 +175,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
            break;
          }
          target = target.parentNode;
-@@ -952,6 +971,9 @@
+@@ -961,6 +980,9 @@
            return null;
          }
        }
@@ -185,7 +185,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
        return target;
      }
  
-@@ -1011,7 +1033,8 @@
+@@ -1014,7 +1036,8 @@
          isTabGroupLabel(draggedTab) &&
          draggedTab._dragData?.expandGroupOnDrop
        ) {
@@ -195,7 +195,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
        }
      }
  
-@@ -1195,7 +1218,6 @@
+@@ -1206,7 +1229,6 @@
          // using updateDragImage. On Linux, we can use a panel.
          if (platform == "win" || platform == "macosx") {
            captureListener = function () {
@@ -203,7 +203,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
            };
          } else {
            // Create a panel to use it in setDragImage
-@@ -1233,7 +1255,6 @@
+@@ -1244,7 +1266,6 @@
          );
          dragImageOffset = dragImageOffset * scale;
        }
@@ -211,7 +211,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
  
        // _dragData.offsetX/Y give the coordinates that the mouse should be
        // positioned relative to the corner of the new window created upon
-@@ -1252,7 +1273,7 @@
+@@ -1263,7 +1284,7 @@
        let dropEffect = this.getDropEffectForTabDrag(event);
        let isMovingInTabStrip = !fromTabList && dropEffect == "move";
        let collapseTabGroupDuringDrag =
@@ -220,7 +220,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
  
        tab._dragData = {
          offsetX: this._tabbrowserTabs.verticalMode
-@@ -1262,7 +1283,7 @@
+@@ -1273,7 +1294,7 @@
            ? event.screenY - window.screenY - tabOffset
            : event.screenY - window.screenY,
          scrollPos:
@@ -229,7 +229,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
              ? this._tabbrowserTabs.pinnedTabsContainer.scrollPosition
              : this._tabbrowserTabs.arrowScrollbox.scrollPosition,
          screenX: event.screenX,
-@@ -1309,6 +1330,7 @@
+@@ -1320,6 +1341,7 @@
        if (tabStripItemElement.hasAttribute("dragtarget")) {
          return;
        }
@@ -237,7 +237,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
        let isPinned = tab.pinned;
        let dragAndDropElements = this._tabbrowserTabs.dragAndDropElements;
        let isGrid = this._tabbrowserTabs.isContainerVerticalPinnedGrid(tab);
-@@ -1675,23 +1697,6 @@
+@@ -1686,23 +1708,6 @@
  
        // Slide the relevant tabs to their new position.
        // non-moving tabs adjust for RTL
@@ -261,7 +261,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
        // moving tabs don't adjust for RTL
        for (let item of selectedElements) {
          if (
-@@ -1740,7 +1745,6 @@
+@@ -1751,7 +1756,6 @@
        for (let item of this._tabbrowserTabs.dragAndDropElements) {
          delete item._moveTogetherSelectedTabsData;
          item = elementToMove(item);
@@ -269,7 +269,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
          item.removeAttribute("multiselected-move-together");
        }
      }
-@@ -2587,7 +2591,6 @@
+@@ -2598,7 +2602,6 @@
          tab.style.top = "";
          tab.style.maxWidth = "";
          tab.style.pointerEvents = "";
@@ -277,7 +277,7 @@ index ea4f83fad1757f073ea1bbe5c93a4ebe5ecc0abe..904e604e28c96757fabf0dd3a749c852
          tab.removeAttribute("small-stack");
          tab.removeAttribute("big-stack");
        }
-@@ -2596,11 +2599,9 @@
+@@ -2607,11 +2610,9 @@
        )) {
          label.style.width = "";
          label.style.maxWidth = "";
diff --git a/src/browser/components/tabbrowser/content/tab-js.patch b/src/browser/components/tabbrowser/content/tab-js.patch
index c759abcab..a1aad36c5 100644
--- a/src/browser/components/tabbrowser/content/tab-js.patch
+++ b/src/browser/components/tabbrowser/content/tab-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/tabbrowser/content/tab.js b/browser/components/tabbrowser/content/tab.js
-index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d645641cd 100644
+index 8f2ebf3a0bd4e2af01cf41024b16bd491e8ed961..27721e26c3cd8cb066b462dedfa4ce785ca5c2c3 100644
 --- a/browser/components/tabbrowser/content/tab.js
 +++ b/browser/components/tabbrowser/content/tab.js
 @@ -21,6 +21,7 @@
@@ -10,10 +10,10 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
            <stack class="tab-icon-stack">
              <hbox class="tab-throbber"/>
              <hbox class="tab-icon-pending"/>
-@@ -38,9 +39,11 @@
-             <hbox class="tab-secondary-label">
-               <label class="tab-icon-sound-label tab-icon-sound-pip-label" data-l10n-id="browser-tab-audio-pip" role="presentation"/>
-             </hbox>
+@@ -35,9 +36,11 @@
+                 pack="center"
+                 flex="1">
+             <label class="tab-text tab-label" role="presentation"/>
 +            <label class="zen-tab-sublabel" data-l10n-id="zen-tab-sublabel" data-l10n-args='{"tabSubtitle": "zen-default-pinned"}' role="presentation"/>
            </vbox>
            <image class="tab-note-icon" role="presentation"/>
@@ -22,7 +22,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
          </hbox>
        </stack>
        `;
-@@ -87,7 +90,7 @@
+@@ -84,7 +87,7 @@
          ".tab-content":
            "pinned,selected=visuallyselected,multiselected,titlechanged,attention",
          ".tab-icon-stack":
@@ -31,7 +31,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
          ".tab-throbber":
            "fadein,pinned,busy,progress,selected=visuallyselected",
          ".tab-icon-pending":
-@@ -96,9 +99,9 @@
+@@ -93,9 +96,9 @@
            "src=image,requestcontextid,fadein,pinned,selected=visuallyselected,busy,crashed,sharing,pictureinpicture,pending,discarded",
          ".tab-sharing-icon-overlay": "sharing,selected=visuallyselected,pinned",
          ".tab-icon-overlay":
@@ -43,7 +43,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
          ".tab-label-container":
            "pinned,selected=visuallyselected,labeldirection",
          ".tab-label":
-@@ -189,7 +192,7 @@
+@@ -184,7 +187,7 @@
      }
  
      set _visuallySelected(val) {
@@ -52,7 +52,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
          return;
        }
  
-@@ -225,11 +228,25 @@
+@@ -220,11 +223,25 @@
      }
  
      get visible() {
@@ -83,7 +83,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
      }
  
      get hidden() {
-@@ -308,7 +325,7 @@
+@@ -303,7 +320,7 @@
          return false;
        }
  
@@ -92,7 +92,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
      }
  
      get lastAccessed() {
-@@ -393,7 +410,18 @@
+@@ -388,7 +405,18 @@
      }
  
      get group() {
@@ -112,7 +112,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
      }
  
      get splitview() {
-@@ -475,6 +503,10 @@
+@@ -470,6 +498,10 @@
          }
        }
  
@@ -123,7 +123,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
        // If the previous target wasn't part of this tab then this is a mouseenter event.
        if (!this.contains(event.relatedTarget)) {
          this._mouseenter();
-@@ -504,6 +536,7 @@
+@@ -499,6 +531,7 @@
        if (!this.contains(event.relatedTarget)) {
          this._mouseleave();
        }
@@ -131,7 +131,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
      }
  
      on_dragstart(event) {
-@@ -538,6 +571,8 @@
+@@ -533,6 +566,8 @@
          this.style.MozUserFocus = "ignore";
        } else if (
          event.target.classList.contains("tab-close-button") ||
@@ -140,7 +140,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
          event.target.classList.contains("tab-icon-overlay") ||
          event.target.classList.contains("tab-audio-button")
        ) {
-@@ -572,7 +607,7 @@
+@@ -567,7 +602,7 @@
            }
          } else if (
            event.altKey &&
@@ -149,7 +149,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
          ) {
            eventMaySelectTab = false;
          } else if (!this.selected && this.multiselected) {
-@@ -597,6 +632,10 @@
+@@ -592,6 +627,10 @@
        this.style.MozUserFocus = "";
      }
  
@@ -160,7 +160,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
      on_click(event) {
        if (event.button != 0) {
          return;
-@@ -620,14 +659,31 @@
+@@ -615,14 +654,31 @@
              trigger: "alt_click",
            });
          }
@@ -193,7 +193,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
          gBrowser.multiSelectedTabsCount > 0 &&
          !event.target.classList.contains("tab-close-button") &&
          !event.target.classList.contains("tab-icon-overlay") &&
-@@ -639,8 +695,9 @@
+@@ -634,8 +690,9 @@
        }
  
        if (
@@ -205,7 +205,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
        ) {
          if (this.activeMediaBlocked) {
            if (this.multiselected) {
-@@ -658,7 +715,7 @@
+@@ -653,7 +710,7 @@
          return;
        }
  
@@ -214,7 +214,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
          if (this.multiselected) {
            gBrowser.removeMultiSelectedTabs(
              lazy.TabMetrics.userTriggeredContext(
-@@ -678,6 +735,14 @@
+@@ -673,6 +730,14 @@
          // (see tabbrowser-tabs 'click' handler).
          gBrowser.tabContainer._blockDblClick = true;
        }
@@ -229,7 +229,7 @@ index b9381999a77ecacdb95c69494ac8972e9f13d14d..a210b53bb46373f8bab532a00b25301d
      }
  
      on_dblclick(event) {
-@@ -701,6 +766,8 @@
+@@ -696,6 +761,8 @@
            animate: true,
            triggeringEvent: event,
          });
diff --git a/src/browser/components/tabbrowser/content/tabbrowser-js.patch b/src/browser/components/tabbrowser/content/tabbrowser-js.patch
index 7c8a6bf53..9bf056d12 100644
--- a/src/browser/components/tabbrowser/content/tabbrowser-js.patch
+++ b/src/browser/components/tabbrowser/content/tabbrowser-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/tabbrowser/content/tabbrowser.js b/browser/components/tabbrowser/content/tabbrowser.js
-index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008ede72076 100644
+index 08b5b56e069d038d72c87355920c4ce8a55ed805..85f87cdafeca180fc72586c4b407c23125ca5716 100644
 --- a/browser/components/tabbrowser/content/tabbrowser.js
 +++ b/browser/components/tabbrowser/content/tabbrowser.js
-@@ -502,6 +502,7 @@
+@@ -511,6 +511,7 @@
       * @type {MozBrowser[]}
       */
      get splitViewBrowsers() {
@@ -10,7 +10,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        const browsers = [];
        if (this.#activeSplitView) {
          for (const tab of this.#activeSplitView.tabs) {
-@@ -575,15 +576,66 @@
+@@ -584,15 +585,66 @@
        return this.tabContainer.visibleTabs;
      }
  
@@ -79,7 +79,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
      set selectedTab(val) {
        if (
          gSharedTabWarning.willShowSharedTabWarning(val) ||
-@@ -592,6 +644,9 @@
+@@ -601,6 +653,9 @@
        ) {
          return;
        }
@@ -89,7 +89,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        // Update the tab
        this.tabbox.selectedTab = val;
      }
-@@ -659,6 +714,10 @@
+@@ -668,6 +723,10 @@
          userContextId = parseInt(tabArgument.getAttribute("usercontextid"), 10);
        }
  
@@ -100,7 +100,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        if (tabArgument && tabArgument.linkedBrowser) {
          remoteType = tabArgument.linkedBrowser.remoteType;
          initialBrowsingContextGroupId =
-@@ -751,6 +810,8 @@
+@@ -760,6 +819,8 @@
        this.tabpanels.appendChild(panel);
  
        let tab = this.tabs[0];
@@ -109,7 +109,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        tab.linkedPanel = uniqueId;
        this._selectedTab = tab;
        this._selectedBrowser = browser;
-@@ -1121,13 +1182,18 @@
+@@ -1131,13 +1192,18 @@
        }
  
        this.showTab(aTab);
@@ -129,7 +129,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        aTab.setAttribute("pinned", "true");
        this._updateTabBarForPinnedTabs();
-@@ -1140,11 +1206,19 @@
+@@ -1150,11 +1216,19 @@
        }
  
        this.#handleTabMove(aTab, () => {
@@ -150,7 +150,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        });
  
        aTab.style.marginInlineStart = "";
-@@ -1321,6 +1395,9 @@
+@@ -1369,6 +1443,9 @@
  
        let LOCAL_PROTOCOLS = ["chrome:", "about:", "resource:", "data:"];
  
@@ -160,7 +160,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        if (
          aIconURL &&
          !LOCAL_PROTOCOLS.some(protocol => aIconURL.startsWith(protocol))
-@@ -1330,6 +1407,9 @@
+@@ -1378,6 +1455,9 @@
          );
          return;
        }
@@ -170,7 +170,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        let browser = this.getBrowserForTab(aTab);
        browser.mIconURL = aIconURL;
-@@ -1652,7 +1732,6 @@
+@@ -1700,7 +1780,6 @@
  
        // Preview mode should not reset the owner
        if (!this._previewMode && !oldTab.selected) {
@@ -178,15 +178,15 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        }
  
        let lastRelatedTab = this._lastRelatedTabMap.get(oldTab);
-@@ -1743,6 +1822,7 @@
+@@ -1791,6 +1870,7 @@
        if (!this._previewMode) {
          newTab.recordTimeFromUnloadToReload();
          newTab.updateLastAccessed();
 +        newTab.removeAttribute("unread");
          oldTab.updateLastAccessed();
          // if this is the foreground window, update the last-seen timestamps.
-         if (this.ownerGlobal == BrowserWindowTracker.getTopWindow()) {
-@@ -1957,6 +2037,9 @@
+         if (this.documentGlobal == BrowserWindowTracker.getTopWindow()) {
+@@ -2005,6 +2085,9 @@
        }
  
        let activeEl = document.activeElement;
@@ -196,7 +196,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        // If focus is on the old tab, move it to the new tab.
        if (activeEl == oldTab) {
          newTab.focus();
-@@ -1995,7 +2078,7 @@
+@@ -2043,7 +2126,7 @@
        // Focus the location bar if it was previously focused for that tab.
        // In full screen mode, only bother making the location bar visible
        // if the tab is a blank one.
@@ -205,7 +205,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          let selectURL = () => {
            if (this._asyncTabSwitching) {
              // Set _awaitingSetURI flag to suppress popup notification
-@@ -2283,7 +2366,12 @@
+@@ -2331,7 +2414,12 @@
        return this._setTabLabel(aTab, aLabel);
      }
  
@@ -219,7 +219,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        if (!aLabel || (isURL && /^about:reader\?url=/.test(aLabel))) {
          return false;
        }
-@@ -2408,7 +2496,7 @@
+@@ -2457,7 +2545,7 @@
          newIndex = this.selectedTab._tPos + 1;
        }
  
@@ -228,7 +228,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          if (this.isTabGroupLabel(targetTab)) {
            throw new Error(
              "Replacing a tab group label with a tab is not supported"
-@@ -2685,6 +2773,7 @@
+@@ -2737,6 +2825,7 @@
        uriIsAboutBlank,
        userContextId,
        skipLoad,
@@ -236,7 +236,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
      } = {}) {
        let b = document.createXULElement("browser");
        // Use the JSM global to create the permanentKey, so that if the
-@@ -2758,8 +2847,7 @@
+@@ -2810,8 +2899,7 @@
          // we use a different attribute name for this?
          b.setAttribute("name", name);
        }
@@ -246,7 +246,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          b.setAttribute("transparent", "true");
        }
  
-@@ -2929,7 +3017,7 @@
+@@ -2981,7 +3069,7 @@
  
        let panel = this.getPanel(browser);
        let uniqueId = this._generateUniquePanelID();
@@ -255,7 +255,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        aTab.linkedPanel = uniqueId;
  
        // Inject the <browser> into the DOM if necessary.
-@@ -2989,8 +3077,8 @@
+@@ -3041,8 +3129,8 @@
        // If we transitioned from one browser to two browsers, we need to set
        // hasSiblings=false on both the existing browser and the new browser.
        if (this.tabs.length == 2) {
@@ -266,7 +266,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        } else {
          aTab.linkedBrowser.browsingContext.hasSiblings = this.tabs.length > 1;
        }
-@@ -3175,7 +3263,6 @@
+@@ -3227,7 +3315,6 @@
              this.selectedTab = this.addTrustedTab(BROWSER_NEW_TAB_URL, {
                tabIndex: tab._tPos + 1,
                userContextId: tab.userContextId,
@@ -274,7 +274,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
                focusUrlBar: true,
              });
              resolve(this.selectedBrowser);
-@@ -3285,6 +3372,10 @@
+@@ -3337,6 +3424,10 @@
          schemelessInput,
          hasValidUserGestureActivation = false,
          textDirectiveUserActivation = false,
@@ -285,7 +285,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        } = {}
      ) {
        // all callers of addTab that pass a params object need to pass
-@@ -3295,10 +3386,25 @@
+@@ -3347,10 +3438,25 @@
          );
        }
  
@@ -311,7 +311,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        // If we're opening a foreground tab, set the owner by default.
        ownerTab ??= inBackground ? null : this.selectedTab;
  
-@@ -3306,6 +3412,7 @@
+@@ -3358,6 +3464,7 @@
        if (this.selectedTab.owner) {
          this.selectedTab.owner = null;
        }
@@ -319,7 +319,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        // Find the tab that opened this one, if any. This is used for
        // determining positioning, and inherited attributes such as the
-@@ -3358,6 +3465,22 @@
+@@ -3410,6 +3517,22 @@
            noInitialLabel,
            skipBackgroundNotify,
          });
@@ -342,7 +342,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          if (insertTab) {
            // Insert the tab into the tab container in the correct position.
            this.#insertTabAtIndex(t, {
-@@ -3366,6 +3489,7 @@
+@@ -3418,6 +3541,7 @@
              ownerTab,
              openerTab,
              pinned,
@@ -350,7 +350,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
              bulkOrderedOpen,
              tabGroup: tabGroup ?? openerTab?.group,
            });
-@@ -3384,6 +3508,7 @@
+@@ -3436,6 +3560,7 @@
            openWindowInfo,
            skipLoad,
            triggeringRemoteType,
@@ -358,7 +358,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          }));
  
          if (focusUrlBar) {
-@@ -3508,6 +3633,12 @@
+@@ -3560,6 +3685,12 @@
          }
        }
  
@@ -371,7 +371,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        // Additionally send pinned tab events
        if (pinned) {
          this.#notifyPinnedStatus(t);
-@@ -3518,6 +3649,9 @@
+@@ -3570,6 +3701,9 @@
        if (!inBackground) {
          this.selectedTab = t;
        }
@@ -381,7 +381,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        return t;
      }
  
-@@ -3750,6 +3884,7 @@
+@@ -3802,6 +3936,7 @@
          isAdoptingGroup = false,
          isUserTriggered = false,
          telemetryUserCreateSource = "unknown",
@@ -389,7 +389,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        } = {}
      ) {
        if (
-@@ -3760,9 +3895,6 @@
+@@ -3812,9 +3947,6 @@
              !this.isSplitViewWrapper(tabOrSplitView)
          )
        ) {
@@ -399,7 +399,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        }
  
        if (!color) {
-@@ -3783,9 +3915,14 @@
+@@ -3835,9 +3967,14 @@
          label,
          isAdoptingGroup
        );
@@ -416,7 +416,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        );
        group.addTabs(tabsAndSplitViews);
  
-@@ -3906,7 +4043,7 @@
+@@ -3958,7 +4095,7 @@
        }
  
        this.#handleTabMove(tab, () =>
@@ -425,7 +425,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        );
      }
  
-@@ -3990,6 +4127,7 @@
+@@ -4044,6 +4181,7 @@
          color: group.color,
          insertBefore: newTabs[0],
          isAdoptingGroup: true,
@@ -433,7 +433,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        });
      }
  
-@@ -4200,6 +4338,7 @@
+@@ -4254,6 +4392,7 @@
          openWindowInfo,
          skipLoad,
          triggeringRemoteType,
@@ -441,7 +441,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        }
      ) {
        // If we don't have a preferred remote type (or it is `NOT_REMOTE`), and
-@@ -4269,6 +4408,7 @@
+@@ -4323,6 +4462,7 @@
            openWindowInfo,
            name,
            skipLoad,
@@ -449,7 +449,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          });
        }
  
-@@ -4482,9 +4622,9 @@
+@@ -4536,9 +4676,9 @@
          }
  
          // Add a new tab if needed.
@@ -461,7 +461,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
            let url = "about:blank";
            if (tabData.entries?.length) {
-@@ -4521,8 +4661,10 @@
+@@ -4575,8 +4715,10 @@
              insertTab: false,
              skipLoad: true,
              preferredRemoteType,
@@ -473,7 +473,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
            if (select) {
              tabToSelect = tab;
            }
-@@ -4544,7 +4686,8 @@
+@@ -4598,7 +4740,8 @@
            this.pinTab(tab);
            // Then ensure all the tab open/pinning information is sent.
            this._fireTabOpen(tab, {});
@@ -483,7 +483,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
            let { groupId } = tabData;
            const tabGroup = tabGroupWorkingData.get(groupId);
            // if a tab refers to a tab group we don't know, skip any group
-@@ -4564,7 +4707,10 @@
+@@ -4618,7 +4761,10 @@
                  tabGroup.stateData.id,
                  tabGroup.stateData.color,
                  tabGroup.stateData.collapsed,
@@ -495,7 +495,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
                );
                tabsFragment.appendChild(tabGroup.node);
              }
-@@ -4619,9 +4765,21 @@
+@@ -4673,9 +4819,21 @@
        // to remove the old selected tab.
        if (tabToSelect) {
          let leftoverTab = this.selectedTab;
@@ -517,7 +517,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        if (tabs.length > 1 || !tabs[0].selected) {
          this._updateTabsAfterInsert();
-@@ -4812,11 +4970,14 @@
+@@ -4866,11 +5024,14 @@
        if (ownerTab) {
          tab.owner = ownerTab;
        }
@@ -533,7 +533,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          if (
            !bulkOrderedOpen &&
            ((openerTab &&
-@@ -4828,7 +4989,7 @@
+@@ -4882,7 +5043,7 @@
            let lastRelatedTab =
              openerTab && this._lastRelatedTabMap.get(openerTab);
            let previousTab = lastRelatedTab || openerTab || this.selectedTab;
@@ -542,7 +542,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
              tabGroup = previousTab.group;
            }
            if (
-@@ -4844,7 +5005,7 @@
+@@ -4898,7 +5059,7 @@
                  previousTab.splitview
                ) + 1;
            } else if (previousTab.visible) {
@@ -551,7 +551,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
            } else if (previousTab == FirefoxViewHandler.tab) {
              elementIndex = 0;
            }
-@@ -4872,14 +5033,14 @@
+@@ -4926,14 +5087,14 @@
        }
        // Ensure index is within bounds.
        if (tab.pinned) {
@@ -570,7 +570,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        if (pinned && !itemAfter?.pinned) {
          itemAfter = null;
-@@ -4896,7 +5057,7 @@
+@@ -4950,7 +5111,7 @@
  
        this.tabContainer._invalidateCachedTabs();
  
@@ -579,7 +579,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          if (
            (this.isTab(itemAfter) && itemAfter.group == tabGroup) ||
            this.isSplitViewWrapper(itemAfter)
-@@ -4927,7 +5088,11 @@
+@@ -4981,7 +5142,11 @@
          const tabContainer = pinned
            ? this.tabContainer.pinnedTabsContainer
            : this.tabContainer;
@@ -591,7 +591,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        }
  
        if (tab.group?.collapsed) {
-@@ -4942,6 +5107,7 @@
+@@ -4996,6 +5161,7 @@
        if (pinned) {
          this._updateTabBarForPinnedTabs();
        }
@@ -599,7 +599,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        TabBarVisibility.update();
      }
-@@ -5490,6 +5656,7 @@
+@@ -5544,6 +5710,7 @@
          telemetrySource,
        } = {}
      ) {
@@ -607,7 +607,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        // When 'closeWindowWithLastTab' pref is enabled, closing all tabs
        // can be considered equivalent to closing the window.
        if (
-@@ -5579,6 +5746,7 @@
+@@ -5633,6 +5800,7 @@
          if (lastToClose) {
            this.removeTab(lastToClose, aParams);
          }
@@ -615,7 +615,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        } catch (e) {
          console.error(e);
        }
-@@ -5624,6 +5792,14 @@
+@@ -5678,6 +5846,14 @@
          return;
        }
  
@@ -630,7 +630,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        let isVisibleTab = aTab.visible;
        // We have to sample the tab width now, since _beginRemoveTab might
        // end up modifying the DOM in such a way that aTab gets a new
-@@ -5631,6 +5807,9 @@
+@@ -5685,6 +5861,9 @@
        // state).
        let tabWidth = window.windowUtils.getBoundsWithoutFlushing(aTab).width;
        let isLastTab = this.#isLastTabInWindow(aTab);
@@ -640,7 +640,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        if (
          !this._beginRemoveTab(aTab, {
            closeWindowFastpath: true,
-@@ -5642,13 +5821,14 @@
+@@ -5696,13 +5875,14 @@
            telemetrySource,
          })
        ) {
@@ -656,7 +656,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        let lockTabSizing =
          !this.tabContainer.verticalMode &&
          !aTab.pinned &&
-@@ -5679,7 +5859,13 @@
+@@ -5733,7 +5913,13 @@
          // We're not animating, so we can cancel the animation stopwatch.
          Glean.browserTabclose.timeAnim.cancel(aTab._closeTimeAnimTimerId);
          aTab._closeTimeAnimTimerId = null;
@@ -671,7 +671,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          return;
        }
  
-@@ -5813,7 +5999,7 @@
+@@ -5867,7 +6053,7 @@
            closeWindowWithLastTab != null
              ? closeWindowWithLastTab
              : !window.toolbar.visible ||
@@ -680,7 +680,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
          if (closeWindow) {
            // We've already called beforeunload on all the relevant tabs if we get here,
-@@ -5837,6 +6023,7 @@
+@@ -5891,6 +6077,7 @@
  
          newTab = true;
        }
@@ -688,7 +688,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        aTab._endRemoveArgs = [closeWindow, newTab];
  
        // swapBrowsersAndCloseOther will take care of closing the window without animation.
-@@ -5877,13 +6064,7 @@
+@@ -5931,13 +6118,7 @@
        aTab._mouseleave();
  
        if (newTab) {
@@ -703,7 +703,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        } else {
          TabBarVisibility.update();
        }
-@@ -6016,6 +6197,7 @@
+@@ -6070,6 +6251,7 @@
          this.tabs[i]._tPos = i;
        }
  
@@ -711,7 +711,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        if (!this._windowIsClosing) {
          // update tab close buttons state
          this.tabContainer._updateCloseButtons();
-@@ -6201,6 +6383,7 @@
+@@ -6255,6 +6437,7 @@
          memory_after: await getTotalMemoryUsage(),
          time_to_unload_in_ms: timeElapsed,
        });
@@ -719,7 +719,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
      }
  
      /**
-@@ -6246,6 +6429,7 @@
+@@ -6300,6 +6483,7 @@
        }
  
        let excludeTabs = new Set(aExcludeTabs);
@@ -727,7 +727,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        // If this tab has a successor, it should be selectable, since
        // hiding or closing a tab removes that tab as a successor.
-@@ -6258,15 +6442,22 @@
+@@ -6312,15 +6496,22 @@
          !excludeTabs.has(aTab.owner) &&
          Services.prefs.getBoolPref("browser.tabs.selectOwnerOnClose")
        ) {
@@ -752,7 +752,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        let tab = this.tabContainer.findNextTab(aTab, {
          direction: 1,
          filter: _tab => remainingTabs.includes(_tab),
-@@ -6280,7 +6471,7 @@
+@@ -6334,7 +6525,7 @@
        }
  
        if (tab) {
@@ -761,7 +761,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        }
  
        // If no qualifying visible tab was found, see if there is a tab in
-@@ -6301,7 +6492,7 @@
+@@ -6355,7 +6546,7 @@
          });
        }
  
@@ -770,7 +770,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
      }
  
      _blurTab(aTab) {
-@@ -6312,7 +6503,7 @@
+@@ -6366,7 +6557,7 @@
       * @returns {boolean}
       *   False if swapping isn't permitted, true otherwise.
       */
@@ -779,7 +779,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        // Do not allow transfering a private tab to a non-private window
        // and vice versa.
        if (
-@@ -6366,6 +6557,7 @@
+@@ -6420,6 +6611,7 @@
        // fire the beforeunload event in the process.  Close the other
        // window if this was its last tab.
        if (
@@ -787,22 +787,22 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          !remoteBrowser._beginRemoveTab(aOtherTab, {
            adoptedByTab: aOurTab,
            closeWindowWithLastTab: true,
-@@ -6377,7 +6569,7 @@
+@@ -6431,7 +6623,7 @@
        // If this is the last tab of the window, hide the window
        // immediately without animation before the docshell swap, to avoid
        // about:blank being painted.
 -      let [closeWindow] = aOtherTab._endRemoveArgs;
 +      let [closeWindow] = !zenCloseOther ? [false] : aOtherTab._endRemoveArgs;
        if (closeWindow) {
-         let win = aOtherTab.ownerGlobal;
+         let win = aOtherTab.documentGlobal;
          win.windowUtils.suppressAnimation(true);
-@@ -6511,11 +6703,13 @@
+@@ -6565,11 +6757,13 @@
        }
  
        // Finish tearing down the tab that's going away.
 +      if (zenCloseOther) {
        if (closeWindow) {
-         aOtherTab.ownerGlobal.close();
+         aOtherTab.documentGlobal.close();
        } else {
          remoteBrowser._endRemoveTab(aOtherTab);
        }
@@ -810,7 +810,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        this.setTabTitle(aOurTab);
  
-@@ -6717,10 +6911,10 @@
+@@ -6771,10 +6965,10 @@
        SessionStore.deleteCustomTabValue(aTab, "hiddenBy");
      }
  
@@ -823,7 +823,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          aTab.selected ||
          aTab.closing ||
          // Tabs that are sharing the screen, microphone or camera cannot be hidden.
-@@ -6780,7 +6974,8 @@
+@@ -6834,7 +7028,8 @@
       * @param {object} [aOptions={}]
       *   Key-value pairs that will be serialized into the features string.
       */
@@ -833,7 +833,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        if (this.tabs.length == 1) {
          return null;
        }
-@@ -6797,7 +6992,7 @@
+@@ -6851,7 +7046,7 @@
        // tell a new window to take the "dropped" tab
        let args = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
        args.appendElement(aTab.splitview ?? aTab);
@@ -842,7 +842,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          private: PrivateBrowsingUtils.isWindowPrivate(window),
          features: Object.entries(aOptions)
            .map(([key, value]) => `${key}=${value}`)
-@@ -6805,6 +7000,8 @@
+@@ -6859,6 +7054,8 @@
          openerWindow: window,
          args,
        });
@@ -851,7 +851,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
      }
  
      /**
-@@ -6917,7 +7114,7 @@
+@@ -6971,7 +7168,7 @@
       *   `true` if element is a `<tab-group>`
       */
      isTabGroup(element) {
@@ -860,7 +860,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
      }
  
      /**
-@@ -7002,8 +7199,8 @@
+@@ -7056,8 +7253,8 @@
        }
  
        // Don't allow mixing pinned and unpinned tabs.
@@ -871,7 +871,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        } else {
          tabIndex = Math.max(tabIndex, this.pinnedTabCount);
        }
-@@ -7049,8 +7246,8 @@
+@@ -7103,8 +7300,8 @@
        this.#handleTabMove(
          element,
          () => {
@@ -882,7 +882,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
              neighbor = neighbor.group;
            }
            if (neighbor?.splitview) {
-@@ -7061,6 +7258,12 @@
+@@ -7115,6 +7312,12 @@
                return;
              }
            }
@@ -895,7 +895,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
            if (movingForwards && neighbor) {
              neighbor.after(element);
-@@ -7119,23 +7322,31 @@
+@@ -7173,23 +7376,31 @@
      #moveTabNextTo(element, targetElement, moveBefore = false, metricsContext) {
        if (this.isTabGroupLabel(targetElement)) {
          targetElement = targetElement.group;
@@ -933,7 +933,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        } else if (!element.pinned && targetElement && targetElement.pinned) {
          // If the caller asks to move an unpinned element next to a pinned
          // tab, move the unpinned element to be the first unpinned element
-@@ -7148,12 +7359,35 @@
+@@ -7202,12 +7413,35 @@
          //    move the tab group right before the first unpinned tab.
          // 4. Moving a tab group and the first unpinned tab is grouped:
          //    move the tab group right before the first unpinned tab's tab group.
@@ -970,7 +970,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        // We want to include the splitview wrapper if it's the targetElement, but
        // not in the case where we want to reverse tabs within the same splitview.
-@@ -7162,6 +7396,7 @@
+@@ -7216,6 +7450,7 @@
        }
  
        let getContainer = () =>
@@ -978,7 +978,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          element.pinned
            ? this.tabContainer.pinnedTabsContainer
            : this.tabContainer;
-@@ -7170,11 +7405,15 @@
+@@ -7224,11 +7459,15 @@
          element,
          () => {
            if (moveBefore) {
@@ -995,7 +995,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
            }
          },
          metricsContext
-@@ -7248,11 +7487,15 @@
+@@ -7302,11 +7541,15 @@
       * @param {TabMetricsContext} [metricsContext]
       */
      moveTabToExistingGroup(aTab, aGroup, metricsContext) {
@@ -1014,7 +1014,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        }
        if (aTab.group && aTab.group.id === aGroup.id) {
          return;
-@@ -7324,6 +7567,7 @@
+@@ -7378,6 +7621,7 @@
  
        let state = {
          tabIndex: tab._tPos,
@@ -1022,7 +1022,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        };
        if (tab.visible) {
          state.elementIndex = tab.elementIndex;
-@@ -7355,7 +7599,7 @@
+@@ -7409,7 +7653,7 @@
        let changedSplitView =
          previousTabState.splitViewId != currentTabState.splitViewId;
  
@@ -1031,7 +1031,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          tab.dispatchEvent(
            new CustomEvent("TabMove", {
              bubbles: true,
-@@ -7402,6 +7646,10 @@
+@@ -7456,6 +7700,10 @@
  
        moveActionCallback();
  
@@ -1042,13 +1042,13 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        // Clear tabs cache after moving nodes because the order of tabs may have
        // changed.
        this.tabContainer._invalidateCachedTabs();
-@@ -7452,7 +7700,22 @@
+@@ -7506,7 +7754,22 @@
       * @returns {object}
       *    The new tab in the current window, null if the tab couldn't be adopted.
       */
 -    adoptTab(aTab, { elementIndex, tabIndex, selectTab = false } = {}) {
 +    adoptTab(aTab, { elementIndex, tabIndex, selectTab = false, spaceId = null } = {}) {
-+      if (window.gZenWorkspaces.currentWindowIsSyncing && aTab.ownerGlobal.gZenWorkspaces?.currentWindowIsSyncing) {
++      if (window.gZenWorkspaces.currentWindowIsSyncing && aTab.documentGlobal.gZenWorkspaces?.currentWindowIsSyncing) {
 +        const tabId = aTab.id;
 +        const thisTab = window.gZenWindowSync.getItemFromWindow(window, tabId);
 +        if (thisTab) {
@@ -1066,7 +1066,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        // Swap the dropped tab with a new one we create and then close
        // it in the other window (making it seem to have moved between
        // windows). We also ensure that the tab we create to swap into has
-@@ -7495,6 +7758,8 @@
+@@ -7549,6 +7812,8 @@
        }
        params.skipLoad = true;
        let newTab = this.addWebTab("about:blank", params);
@@ -1075,7 +1075,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
        aTab.container.tabDragAndDrop.finishAnimateTabMove();
  
-@@ -8205,7 +8470,7 @@
+@@ -8259,7 +8524,7 @@
          // preventDefault(). It will still raise the window if appropriate.
          return;
        }
@@ -1084,7 +1084,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        window.focus();
        aEvent.preventDefault();
      }
-@@ -8222,7 +8487,6 @@
+@@ -8276,7 +8541,6 @@
  
      on_TabGroupCollapse(aEvent) {
        aEvent.target.tabs.forEach(tab => {
@@ -1092,7 +1092,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
        });
      }
  
-@@ -8556,7 +8820,9 @@
+@@ -8630,7 +8894,9 @@
  
          let filter = this._tabFilters.get(tab);
          if (filter) {
@@ -1102,7 +1102,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
  
            let listener = this._tabListeners.get(tab);
            if (listener) {
-@@ -9359,6 +9625,7 @@
+@@ -9435,6 +9701,7 @@
              aWebProgress.isTopLevel
            ) {
              this.mTab.setAttribute("busy", "true");
@@ -1110,7 +1110,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
              gBrowser._tabAttrModified(this.mTab, ["busy"]);
              this.mTab._notselectedsinceload = !this.mTab.selected;
            }
-@@ -9439,6 +9706,7 @@
+@@ -9515,6 +9782,7 @@
          // known defaults. Note we use the original URL since about:newtab
          // redirects to a prerendered page.
          const shouldRemoveFavicon =
@@ -1118,7 +1118,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
            !this.mBrowser.mIconURL &&
            !ignoreBlank &&
            !(originalLocation.spec in FAVICON_DEFAULTS);
-@@ -9613,13 +9881,6 @@
+@@ -9689,13 +9957,6 @@
              this.mBrowser.originalURI = aRequest.originalURI;
            }
  
@@ -1132,7 +1132,7 @@ index 43fb79a3060e20f671ae6ffc26350c7abf497702..68a037d5a0e3416f31ffcb163592f008
          }
  
          let userContextId = this.mBrowser.getAttribute("usercontextid") || 0;
-@@ -10507,7 +10768,8 @@ var TabContextMenu = {
+@@ -10587,7 +10848,8 @@ var TabContextMenu = {
      );
      contextUnpinSelectedTabs.hidden =
        !this.contextTab.pinned || !this.multiselected;
diff --git a/src/browser/components/tabbrowser/content/tabgroup-js.patch b/src/browser/components/tabbrowser/content/tabgroup-js.patch
index 60b9eafae..98e1d9fe6 100644
--- a/src/browser/components/tabbrowser/content/tabgroup-js.patch
+++ b/src/browser/components/tabbrowser/content/tabgroup-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/tabbrowser/content/tabgroup.js b/browser/components/tabbrowser/content/tabgroup.js
-index d1be14df27d76a191eaff05502c030fd68c46738..e9b5e90e39b594a6119081c8d707fb4a064fea9b 100644
+index e78fa0dec83424c0059c081f83fda0d23bdb5a94..a7de584d9029ff9e55d809d50377593e398ee999 100644
 --- a/browser/components/tabbrowser/content/tabgroup.js
 +++ b/browser/components/tabbrowser/content/tabgroup.js
 @@ -14,11 +14,11 @@
@@ -49,7 +49,7 @@ index d1be14df27d76a191eaff05502c030fd68c46738..e9b5e90e39b594a6119081c8d707fb4a
  
        // Similar to above, always set up TabSelect listener, as this gets
        // removed in disconnectedCallback
-       this.ownerGlobal.addEventListener("TabSelect", this);
+       this.documentGlobal.addEventListener("TabSelect", this);
        this.addEventListener("SplitViewTabChange", this);
  
 -      if (this._initialized) {
@@ -129,7 +129,7 @@ index d1be14df27d76a191eaff05502c030fd68c46738..e9b5e90e39b594a6119081c8d707fb4a
      }
  
      get color() {
-@@ -317,6 +348,9 @@
+@@ -335,6 +366,9 @@
      }
  
      set collapsed(val) {
@@ -139,7 +139,7 @@ index d1be14df27d76a191eaff05502c030fd68c46738..e9b5e90e39b594a6119081c8d707fb4a
        if (!!val == this.collapsed) {
          return;
        }
-@@ -403,7 +437,6 @@
+@@ -421,7 +455,6 @@
            tabGroupName,
          })
          .then(result => {
@@ -147,7 +147,7 @@ index d1be14df27d76a191eaff05502c030fd68c46738..e9b5e90e39b594a6119081c8d707fb4a
          });
      }
  
-@@ -478,13 +511,68 @@
+@@ -496,13 +529,68 @@
       * @returns {MozTabbrowserTab[]}
       */
      get tabs() {
@@ -221,15 +221,15 @@ index d1be14df27d76a191eaff05502c030fd68c46738..e9b5e90e39b594a6119081c8d707fb4a
      }
  
      /**
-@@ -592,7 +680,6 @@
+@@ -610,7 +698,6 @@
            );
          } else {
            if (tabOrSplitView.pinned) {
--            tabOrSplitView.ownerGlobal.gBrowser.unpinTab(tabOrSplitView);
+-            tabOrSplitView.documentGlobal.gBrowser.unpinTab(tabOrSplitView);
            }
            let tabToMove =
-             this.ownerGlobal === tabOrSplitView.ownerGlobal
-@@ -661,7 +748,7 @@
+             this.documentGlobal === tabOrSplitView.documentGlobal
+@@ -679,7 +766,7 @@
       */
      on_click(event) {
        let isToggleElement =
@@ -238,7 +238,7 @@ index d1be14df27d76a191eaff05502c030fd68c46738..e9b5e90e39b594a6119081c8d707fb4a
          event.target === this.#overflowCountLabel;
        if (isToggleElement && event.button === 0) {
          event.preventDefault();
-@@ -740,5 +827,6 @@
+@@ -758,5 +845,6 @@
      }
    }
  
diff --git a/src/browser/components/tabbrowser/content/tabs-js.patch b/src/browser/components/tabbrowser/content/tabs-js.patch
index c1222edd0..449d2bae1 100644
--- a/src/browser/components/tabbrowser/content/tabs-js.patch
+++ b/src/browser/components/tabbrowser/content/tabs-js.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/components/tabbrowser/content/tabs.js b/browser/components/tabbrowser/content/tabs.js
-index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c56982d1aa 100644
+index 568f3a7cc7051ff8cb569f6bcb8018a5212f7072..3036768b8911b4fbc28df7528f7189d9ea21b6f6 100644
 --- a/browser/components/tabbrowser/content/tabs.js
 +++ b/browser/components/tabbrowser/content/tabs.js
-@@ -230,7 +230,7 @@
+@@ -220,7 +220,7 @@
  
        this.tooltip = "tabbrowser-tab-tooltip";
  
@@ -11,7 +11,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        this.tabDragAndDrop.init();
      }
  
-@@ -454,7 +454,7 @@
+@@ -444,7 +444,7 @@
        // and we're not hitting the scroll buttons.
        if (
          event.button != 0 ||
@@ -20,7 +20,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
          event.composedTarget.localName == "toolbarbutton"
        ) {
          return;
-@@ -535,7 +535,6 @@
+@@ -525,7 +525,6 @@
              });
            }
          } else if (isTabGroupLabel(event.target)) {
@@ -28,7 +28,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
          } else if (
            event.originalTarget.closest("scrollbox") &&
            !Services.prefs.getBoolPref(
-@@ -571,6 +570,9 @@
+@@ -561,6 +560,9 @@
      }
  
      on_keydown(event) {
@@ -38,7 +38,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        let { altKey, shiftKey } = event;
        let [accel, nonAccel] =
          AppConstants.platform == "macosx"
-@@ -765,7 +767,6 @@
+@@ -755,7 +757,6 @@
        this._updateCloseButtons();
  
        if (!this.#animatingGroups.size) {
@@ -46,7 +46,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        }
  
        document
-@@ -832,7 +833,7 @@
+@@ -822,7 +823,7 @@
      }
  
      get newTabButton() {
@@ -55,7 +55,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
      }
  
      get verticalMode() {
-@@ -848,6 +849,7 @@
+@@ -838,6 +839,7 @@
      }
  
      get overflowing() {
@@ -63,7 +63,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        return this.hasAttribute("overflow");
      }
  
-@@ -861,29 +863,56 @@
+@@ -851,29 +853,56 @@
        if (pinnedChildren?.at(-1)?.id == "pinned-tabs-container-periphery") {
          pinnedChildren.pop();
        }
@@ -130,7 +130,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
      }
  
      get allSplitViews() {
-@@ -968,29 +997,28 @@
+@@ -958,29 +987,28 @@
          return this.#focusableItems;
        }
  
@@ -170,7 +170,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        this.#focusableItems = focusableItems;
  
        return this.#focusableItems;
-@@ -1003,6 +1031,7 @@
+@@ -993,6 +1021,7 @@
       * focusable (ex, we don't want the splitview container to be focusable, only its children).
       */
      get dragAndDropElements() {
@@ -178,7 +178,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        if (this.#dragAndDropElements) {
          return this.#dragAndDropElements;
        }
-@@ -1073,6 +1102,7 @@
+@@ -1063,6 +1092,7 @@
      _invalidateCachedTabs() {
        this.#allTabs = null;
        this._invalidateCachedVisibleTabs();
@@ -186,7 +186,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
      }
  
      _invalidateCachedVisibleTabs() {
-@@ -1092,7 +1122,8 @@
+@@ -1082,7 +1112,8 @@
  
      isContainerVerticalPinnedGrid(tab) {
        return (
@@ -196,7 +196,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
          this.verticalMode &&
          this.hasAttribute("expanded") &&
          !this.expandOnHover
-@@ -1186,7 +1217,7 @@
+@@ -1176,7 +1207,7 @@
  
        if (node == null) {
          // We have a container for non-tab elements at the end of the scrollbox.
@@ -205,7 +205,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        }
  
        node.before(tab);
-@@ -1281,7 +1312,7 @@
+@@ -1271,7 +1302,7 @@
            // There are separate "new tab" buttons for horizontal tabs toolbar, vertical tabs and
            // for when the tab strip is overflowed (which is shared by vertical and horizontal tabs);
            // Attach the long click popup to all of them.
@@ -214,7 +214,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
            const newTab2 = this.newTabButton;
            const newTabVertical = document.getElementById(
              "vertical-tabs-newtab-button"
-@@ -1386,8 +1417,10 @@
+@@ -1376,8 +1407,10 @@
       */
      _handleTabSelect(aInstant) {
        let selectedTab = this.selectedItem;
@@ -225,7 +225,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        selectedTab._notselectedsinceload = false;
      }
  
-@@ -1396,7 +1429,7 @@
+@@ -1386,7 +1419,7 @@
       * @param {boolean} [shouldScrollInstantly=false]
       */
      #ensureTabIsVisible(tab, shouldScrollInstantly = false) {
@@ -234,7 +234,7 @@ index a2db42fba8d1f1d9df1dc295adb64be3f5885d50..2dd43fe4898badeaf9bc669502ead2c5
        if (arrowScrollbox?.overflowing) {
          arrowScrollbox.ensureElementIsVisible(tab, shouldScrollInstantly);
        }
-@@ -1523,7 +1556,7 @@
+@@ -1513,7 +1546,7 @@
      }
  
      _notifyBackgroundTab(aTab) {
diff --git a/src/browser/components/urlbar/UrlbarController-sys-mjs.patch b/src/browser/components/urlbar/UrlbarController-sys-mjs.patch
index 916f7e3c2..3db64fc48 100644
--- a/src/browser/components/urlbar/UrlbarController-sys-mjs.patch
+++ b/src/browser/components/urlbar/UrlbarController-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/urlbar/UrlbarController.sys.mjs b/browser/components/urlbar/UrlbarController.sys.mjs
-index bb0189fbfc91b3fc3b399b077a35f7b60a3f985f..c4dd60c6fb6d7eb2288a033708836f9983530e2c 100644
+index a05894d593e4149097c473822a38f87b2220625f..1660106c2a6548920fdffd2656e5a1f12c2d548b 100644
 --- a/browser/components/urlbar/UrlbarController.sys.mjs
 +++ b/browser/components/urlbar/UrlbarController.sys.mjs
 @@ -305,7 +305,6 @@ export class UrlbarController {
@@ -10,7 +10,7 @@ index bb0189fbfc91b3fc3b399b077a35f7b60a3f985f..c4dd60c6fb6d7eb2288a033708836f99
        this.view.isOpen &&
        event.ctrlKey &&
        (event.key == "n" || event.key == "p")
-@@ -456,6 +455,8 @@ export class UrlbarController {
+@@ -494,6 +493,8 @@ export class UrlbarController {
              });
            }
            event.preventDefault();
diff --git a/src/browser/components/urlbar/UrlbarProvidersManager-sys-mjs.patch b/src/browser/components/urlbar/UrlbarProvidersManager-sys-mjs.patch
index 6b958bbdf..83a3c92b0 100644
--- a/src/browser/components/urlbar/UrlbarProvidersManager-sys-mjs.patch
+++ b/src/browser/components/urlbar/UrlbarProvidersManager-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/urlbar/UrlbarProvidersManager.sys.mjs b/browser/components/urlbar/UrlbarProvidersManager.sys.mjs
-index d9048a3b8b1f18745c01e40e12f529db3cfaa79e..1ba124a710fcf734ea11f7ccfd4f2f6ebe53e7d2 100644
+index 8de151f473ac6b95bc606251f78a4bede093ee0c..dbd302259c54b0196a370b9ff12ba0dcf1545272 100644
 --- a/browser/components/urlbar/UrlbarProvidersManager.sys.mjs
 +++ b/browser/components/urlbar/UrlbarProvidersManager.sys.mjs
 @@ -913,6 +913,7 @@ export class Query {
diff --git a/src/browser/components/urlbar/UrlbarUtils-sys-mjs.patch b/src/browser/components/urlbar/UrlbarUtils-sys-mjs.patch
index 819a57f9f..00a3df9e5 100644
--- a/src/browser/components/urlbar/UrlbarUtils-sys-mjs.patch
+++ b/src/browser/components/urlbar/UrlbarUtils-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/urlbar/UrlbarUtils.sys.mjs b/browser/components/urlbar/UrlbarUtils.sys.mjs
-index 62367c5a77614e5973791abacd068b39e0f3ab34..c930943b5bfa8a2e6dee43f0ec7a10274a7c7638 100644
+index 2f03bdf632c6ca15c728df2801162da5159682da..6834daede8cb11854f137602100183d85a930686 100644
 --- a/browser/components/urlbar/UrlbarUtils.sys.mjs
 +++ b/browser/components/urlbar/UrlbarUtils.sys.mjs
 @@ -109,6 +109,8 @@ export var UrlbarUtils = {
diff --git a/src/browser/components/urlbar/UrlbarValueFormatter-sys-mjs.patch b/src/browser/components/urlbar/UrlbarValueFormatter-sys-mjs.patch
index e979e94fa..432482c51 100644
--- a/src/browser/components/urlbar/UrlbarValueFormatter-sys-mjs.patch
+++ b/src/browser/components/urlbar/UrlbarValueFormatter-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/urlbar/UrlbarValueFormatter.sys.mjs b/browser/components/urlbar/UrlbarValueFormatter.sys.mjs
-index 344a9a5b969e679040a650dad311c7413f52bbbd..24111cef5e476253f4e69c4d99f6f220bfd8cd7e 100644
+index 8def83509f097ba034b9d94ae00d2ee474ec2d30..ebdb84b9af928b132b848bd4c5bb506d813e5e06 100644
 --- a/browser/components/urlbar/UrlbarValueFormatter.sys.mjs
 +++ b/browser/components/urlbar/UrlbarValueFormatter.sys.mjs
 @@ -77,7 +77,7 @@ export class UrlbarValueFormatter {
@@ -30,7 +30,7 @@ index 344a9a5b969e679040a650dad311c7413f52bbbd..24111cef5e476253f4e69c4d99f6f220
      // Make sure the host is always visible. Since it is aligned on
      // the first strong directional character, we set scrollLeft
      // appropriately to ensure the domain stays visible in case of an
-@@ -371,7 +383,7 @@ export class UrlbarValueFormatter {
+@@ -381,7 +393,7 @@ export class UrlbarValueFormatter {
     * @returns {boolean}
     *   True if formatting was applied and false if not.
     */
@@ -39,7 +39,7 @@ index 344a9a5b969e679040a650dad311c7413f52bbbd..24111cef5e476253f4e69c4d99f6f220
      let urlMetaData = this.#getUrlMetaData();
      if (!urlMetaData) {
        return false;
-@@ -640,6 +652,7 @@ export class UrlbarValueFormatter {
+@@ -650,6 +662,7 @@ export class UrlbarValueFormatter {
        this.#window.requestAnimationFrame(() => {
          if (instance == this.#resizeInstance) {
            this.#ensureFormattedHostVisible();
diff --git a/src/browser/components/urlbar/content/UrlbarInput-mjs.patch b/src/browser/components/urlbar/content/UrlbarInput-mjs.patch
index 1b36d9852..916c5d764 100644
--- a/src/browser/components/urlbar/content/UrlbarInput-mjs.patch
+++ b/src/browser/components/urlbar/content/UrlbarInput-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/urlbar/content/UrlbarInput.mjs b/browser/components/urlbar/content/UrlbarInput.mjs
-index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f771f0a75a8 100644
+index 0fba59d62af9d3cd05bfee2cf84cd8b7cf9bfd6e..3997a5109267f378b59aa6510cbacd07ed57bd36 100644
 --- a/browser/components/urlbar/content/UrlbarInput.mjs
 +++ b/browser/components/urlbar/content/UrlbarInput.mjs
 @@ -98,6 +98,13 @@ const lazy = XPCOMUtils.declareLazy({
@@ -16,7 +16,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
  const UNLIMITED_MAX_RESULTS = 99;
  
  let getBoundsWithoutFlushing = element =>
-@@ -743,7 +750,16 @@ ${
+@@ -770,7 +777,16 @@ ${
      // See _on_select().  HTMLInputElement.select() dispatches a "select"
      // event but does not set the primary selection.
      this._suppressPrimaryAdjustment = true;
@@ -27,13 +27,13 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
 +      zenToolbox.hasAttribute("zen-user-show")
 +    ));
      this.inputField.select();
-+    this.document.ownerGlobal.setTimeout(() => {
++    this.document.documentGlobal.setTimeout(() => {
 +      this.window.document.documentElement.removeAttribute("supress-primary-adjustment");
 +    }, 0);
      this._suppressPrimaryAdjustment = false;
    }
  
-@@ -817,6 +833,10 @@ ${
+@@ -844,6 +860,10 @@ ${
      hideSearchTerms = false,
      isSameDocument = false,
    } = {}) {
@@ -44,11 +44,10 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      if (!this.#isAddressbar) {
        throw new Error(
          "Cannot set URI for UrlbarInput that is not an address bar"
-@@ -1106,8 +1126,16 @@ ${
-         return;
-       }
+@@ -1138,7 +1158,16 @@ ${
+       this.searchModeSwitcher?.updateSearchIcon();
      }
--
+ 
 +    const zenToolbox = this.document.getElementById("navigator-toolbox");
 +    this.window.document.documentElement.setAttribute("supress-primary-adjustment", !(
 +      zenToolbox.hasAttribute("zen-has-hover") ||
@@ -56,13 +55,13 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
 +      zenToolbox.hasAttribute("zen-user-show")
 +    ));
      this.handleNavigation({ event });
-+    this.document.ownerGlobal.setTimeout(() => {
++    this.document.documentGlobal.setTimeout(() => {
 +      this.window.document.documentElement.removeAttribute("supress-primary-adjustment");
 +    }, 100);
    }
  
    /**
-@@ -1551,7 +1579,11 @@ ${
+@@ -1627,7 +1656,11 @@ ${
      }
  
      if (!this.#providesSearchMode(result)) {
@@ -75,7 +74,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      }
  
      if (isCanonized) {
-@@ -2858,6 +2890,42 @@ ${
+@@ -2936,6 +2969,42 @@ ${
      await this.#updateLayoutBreakoutDimensions();
    }
  
@@ -118,9 +117,9 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
    startLayoutExtend() {
      if (!this.#allowBreakout || this.hasAttribute("breakout-extend")) {
        // Do not expand if the Urlbar does not support being expanded or it is
-@@ -2872,6 +2940,13 @@ ${
+@@ -2954,6 +3023,13 @@ ${
  
-     this.setAttribute("breakout-extend", "true");
+     this.toggleAttribute("breakout-extend", true);
  
 +    this.window.gZenUIManager.onUrlbarOpen();
 +    if (this.zenUrlbarBehavior == 'float' || (this.zenUrlbarBehavior == 'floating-on-type' && !this.focusedViaMousedown)) {
@@ -132,7 +131,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      // Enable the animation only after the first extend call to ensure it
      // doesn't run when opening a new window.
      if (!this.hasAttribute("breakout-extend-animate")) {
-@@ -2891,6 +2966,29 @@ ${
+@@ -2981,6 +3057,29 @@ ${
        return;
      }
  
@@ -153,16 +152,16 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
 +      zenToolbox.hasAttribute("zen-user-show")
 +    ));
 +    this.window.gBrowser.selectedBrowser.focus();
-+    this.document.ownerGlobal.setTimeout(() => {
++    this.document.documentGlobal.setTimeout(() => {
 +      this.window.document.documentElement.removeAttribute("supress-primary-adjustment");
 +    }, 100);
 +    this.window.gZenUIManager.onUrlbarClose();
 +    this.removeAttribute("zen-floating-urlbar");
 +
-     this.removeAttribute("breakout-extend");
+     this.toggleAttribute("breakout-extend", false);
      this.#updateTextboxPosition();
    }
-@@ -2921,7 +3019,7 @@ ${
+@@ -3028,7 +3127,7 @@ ${
      forceUnifiedSearchButtonAvailable = false
    ) {
      let prevState = this.getAttribute("pageproxystate");
@@ -171,9 +170,9 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      this.setAttribute("pageproxystate", state);
      this._inputContainer.setAttribute("pageproxystate", state);
      this._identityBox?.setAttribute("pageproxystate", state);
-@@ -3198,10 +3296,12 @@ ${
-       return;
+@@ -3309,10 +3408,12 @@ ${
      }
+ 
      this.style.top = px(
 +      this.window.gZenVerticalTabsManager._hasSetSingleToolbar ?
        this.parentNode.getBoxQuads({
@@ -184,7 +183,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      );
    }
  
-@@ -3260,9 +3360,10 @@ ${
+@@ -3371,9 +3472,10 @@ ${
            return;
          }
  
@@ -196,7 +195,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
          );
          this.style.setProperty(
            "--urlbar-height",
-@@ -3768,6 +3869,7 @@ ${
+@@ -3878,6 +3980,7 @@ ${
    }
  
    _toggleActionOverride(event) {
@@ -204,7 +203,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      if (
        event.keyCode == KeyEvent.DOM_VK_SHIFT ||
        event.keyCode == KeyEvent.DOM_VK_ALT ||
-@@ -3880,8 +3982,8 @@ ${
+@@ -3990,8 +4093,8 @@ ${
      if (!this.#isAddressbar) {
        return val;
      }
@@ -215,7 +214,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
        : val;
      // Only trim value if the directionality doesn't change to RTL and we're not
      // showing a strikeout https protocol.
-@@ -4180,6 +4282,7 @@ ${
+@@ -4290,6 +4393,7 @@ ${
      resultDetails = null,
      browser = this.window.gBrowser.selectedBrowser
    ) {
@@ -223,7 +222,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      if (this.#isAddressbar) {
        this.#prepareAddressbarLoad(
          url,
-@@ -4291,6 +4394,10 @@ ${
+@@ -4401,6 +4505,10 @@ ${
        }
        reuseEmpty = true;
      }
@@ -234,7 +233,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      if (
        where == "tab" &&
        reuseEmpty &&
-@@ -4298,6 +4405,9 @@ ${
+@@ -4408,6 +4516,9 @@ ${
      ) {
        where = "current";
      }
@@ -244,7 +243,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      return where;
    }
  
-@@ -4552,6 +4662,7 @@ ${
+@@ -4662,6 +4773,7 @@ ${
        this.setResultForCurrentValue(null);
        this.handleCommand();
        this.controller.clearLastQueryContextCache();
@@ -252,7 +251,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
  
        this._suppressStartQuery = false;
      });
-@@ -4559,7 +4670,6 @@ ${
+@@ -4669,7 +4781,6 @@ ${
      contextMenu.addEventListener("popupshowing", () => {
        // Close the results pane when the input field contextual menu is open,
        // because paste and go doesn't want a result selection.
@@ -260,7 +259,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
  
        let controller =
          this.document.commandDispatcher.getControllerForCommand("cmd_paste");
-@@ -4715,7 +4825,11 @@ ${
+@@ -4825,7 +4936,11 @@ ${
      if (!engineName && !source && !this.hasAttribute("searchmode")) {
        return;
      }
@@ -273,7 +272,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      if (this._searchModeIndicatorTitle) {
        this._searchModeIndicatorTitle.textContent = "";
        this._searchModeIndicatorTitle.removeAttribute("data-l10n-id");
-@@ -5031,6 +5145,7 @@ ${
+@@ -5141,6 +5256,7 @@ ${
  
      this.document.l10n.setAttributes(
        this.inputField,
@@ -281,7 +280,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
        l10nId,
        l10nId == "urlbar-placeholder-with-name"
          ? { name: engineName }
-@@ -5156,6 +5271,11 @@ ${
+@@ -5264,6 +5380,11 @@ ${
    }
  
    _on_click(event) {
@@ -293,7 +292,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
      switch (event.target) {
        case this.inputField:
        case this._inputContainer:
-@@ -5242,7 +5362,7 @@ ${
+@@ -5356,7 +5477,7 @@ ${
        }
      }
  
@@ -302,7 +301,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
        this.view.autoOpen({ event });
      } else {
        if (this._untrimOnFocusAfterKeydown) {
-@@ -5282,9 +5402,16 @@ ${
+@@ -5396,9 +5517,16 @@ ${
    }
  
    _on_mousedown(event) {
@@ -320,7 +319,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
          if (
            event.composedTarget != this.inputField &&
            event.composedTarget != this._inputContainer
-@@ -5294,6 +5421,10 @@ ${
+@@ -5408,6 +5536,10 @@ ${
  
          this.focusedViaMousedown = !this.focused;
          this.#preventClickSelectsAll = this.focused;
@@ -331,7 +330,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
  
          // Keep the focus status, since the attribute may be changed
          // upon calling this.focus().
-@@ -5329,7 +5460,7 @@ ${
+@@ -5443,7 +5575,7 @@ ${
          }
          // Don't close the view when clicking on a tab; we may want to keep the
          // view open on tab switch, and the TabSelect event arrived earlier.
@@ -340,7 +339,7 @@ index d6615ec5a29f3e3327ac4171f3fc5d9a69bd09fe..c166b7de23c35716bf8c51b6b9c72f77
            break;
          }
  
-@@ -5636,7 +5767,7 @@ ${
+@@ -5732,7 +5864,7 @@ ${
      // When we are in actions search mode we can show more results so
      // increase the limit.
      let maxResults =
diff --git a/src/browser/extensions/newtab/lib/ActivityStream-sys-mjs.patch b/src/browser/extensions/newtab/lib/ActivityStream-sys-mjs.patch
index cfb764b41..52a3b6699 100644
--- a/src/browser/extensions/newtab/lib/ActivityStream-sys-mjs.patch
+++ b/src/browser/extensions/newtab/lib/ActivityStream-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/extensions/newtab/lib/ActivityStream.sys.mjs b/browser/extensions/newtab/lib/ActivityStream.sys.mjs
-index edb61ebece92f53d6edc8522c0dfea01159121dc..fd57751828254ebf9b05af13c26afa55ffa7ed00 100644
+index d88bc01e9a085f2970f4a80bdce94e06d8dcb693..a3dc7795deda5df2a354803a338c63e85a424bc0 100644
 --- a/browser/extensions/newtab/lib/ActivityStream.sys.mjs
 +++ b/browser/extensions/newtab/lib/ActivityStream.sys.mjs
-@@ -347,7 +347,7 @@ export const PREFS_CONFIG = new Map([
+@@ -353,7 +353,7 @@ export const PREFS_CONFIG = new Map([
      "showSponsoredTopSites",
      {
        title: "Show sponsored top sites",
diff --git a/src/browser/installer/package-manifest-in.patch b/src/browser/installer/package-manifest-in.patch
index f07fcc3ac..c39a77575 100644
--- a/src/browser/installer/package-manifest-in.patch
+++ b/src/browser/installer/package-manifest-in.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/installer/package-manifest.in b/browser/installer/package-manifest.in
-index 36eafe35063f02fe3d4acaab24a08dc1b7b0ae24..b6bf327bf286de5246e5c50d89519d16d5771caf 100644
+index 83e52b260c380b8a4fdcb9146c36a048adffba68..f55844c294bc0a0e648fd6fc09f63218c9b71de2 100644
 --- a/browser/installer/package-manifest.in
 +++ b/browser/installer/package-manifest.in
-@@ -386,9 +386,9 @@ bin/libfreebl_64int_3.so
+@@ -390,9 +390,9 @@ bin/libfreebl_64int_3.so
  ;
  #ifdef MOZ_CRASHREPORTER
  #ifdef XP_MACOSX
diff --git a/src/browser/installer/windows/nsis/installer-nsi.patch b/src/browser/installer/windows/nsis/installer-nsi.patch
index 970db92b2..1ccd45b8d 100644
--- a/src/browser/installer/windows/nsis/installer-nsi.patch
+++ b/src/browser/installer/windows/nsis/installer-nsi.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/installer/windows/nsis/installer.nsi b/browser/installer/windows/nsis/installer.nsi
-index 36fbee18edd138036c23ee77806f47cd10efce55..f70893700c54bdbc6d6fc5b760fd9a3654eb39e7 100755
+index 785e5ccfba55a98390652a61be9dbdef1e4815eb..cba2c3bb3b2e5bcbe8ba58a40bc9bc145df81fdd 100755
 --- a/browser/installer/windows/nsis/installer.nsi
 +++ b/browser/installer/windows/nsis/installer.nsi
 @@ -845,7 +845,7 @@ Section "-InstallEndCleanup"
diff --git a/src/browser/installer/windows/nsis/uninstaller-nsi.patch b/src/browser/installer/windows/nsis/uninstaller-nsi.patch
index abb8fc3e7..ad4d6025a 100644
--- a/src/browser/installer/windows/nsis/uninstaller-nsi.patch
+++ b/src/browser/installer/windows/nsis/uninstaller-nsi.patch
@@ -1,7 +1,7 @@
 diff --git a/browser/installer/windows/nsis/uninstaller.nsi b/browser/installer/windows/nsis/uninstaller.nsi
 old mode 100755
 new mode 100644
-index 0e2f7fa874b865b2a354c5ca612c5714f6ac5b69..0b1182279336972705bc3ff47e69353b997eb1bd
+index becbb0f70c84eb7f2d9bff5a3aedcbb7a78a61cf..05835d2088ab631316a25a9f0728898bd7998d8d
 --- a/browser/installer/windows/nsis/uninstaller.nsi
 +++ b/browser/installer/windows/nsis/uninstaller.nsi
 @@ -516,6 +516,7 @@ Section "Uninstall"
diff --git a/src/browser/modules/BrowserWindowTracker-sys-mjs.patch b/src/browser/modules/BrowserWindowTracker-sys-mjs.patch
index bd6f5cd91..bc7b841a3 100644
--- a/src/browser/modules/BrowserWindowTracker-sys-mjs.patch
+++ b/src/browser/modules/BrowserWindowTracker-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/modules/BrowserWindowTracker.sys.mjs b/browser/modules/BrowserWindowTracker.sys.mjs
-index 9aecab66d8f23fac9f16cea2120a5fe903ae1122..692f2bfe3899a58925789503a6bb2a547cdbf7f3 100644
+index 7e2f1d2b9ca10bd48fa1a0cd1f175a99b4169b90..505d6fc5110b99c73a0054abbe098c154227cf50 100644
 --- a/browser/modules/BrowserWindowTracker.sys.mjs
 +++ b/browser/modules/BrowserWindowTracker.sys.mjs
 @@ -330,6 +330,7 @@ export const BrowserWindowTracker = {
diff --git a/src/browser/modules/ExtensionsUI-sys-mjs.patch b/src/browser/modules/ExtensionsUI-sys-mjs.patch
index 0fe9f96f4..8035e51e4 100644
--- a/src/browser/modules/ExtensionsUI-sys-mjs.patch
+++ b/src/browser/modules/ExtensionsUI-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/modules/ExtensionsUI.sys.mjs b/browser/modules/ExtensionsUI.sys.mjs
-index 5251697341bf94f3ca6c877d87a6fe5f4debf03a..71d9247a669cea2135e6f0b76b2c10a869bf35bc 100644
+index 95a4b6e40bd568c3ea5003b648b0acbf96bbb725..6ab8a658721aa6470d482dc958e4b3ac78f49f44 100644
 --- a/browser/modules/ExtensionsUI.sys.mjs
 +++ b/browser/modules/ExtensionsUI.sys.mjs
-@@ -500,7 +500,7 @@ export var ExtensionsUI = {
+@@ -502,7 +502,7 @@ export var ExtensionsUI = {
          eventCallback,
          removeOnDismissal: true,
          popupOptions: {
diff --git a/src/browser/modules/URILoadingHelper-sys-mjs.patch b/src/browser/modules/URILoadingHelper-sys-mjs.patch
index 82ac3592b..24980e837 100644
--- a/src/browser/modules/URILoadingHelper-sys-mjs.patch
+++ b/src/browser/modules/URILoadingHelper-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/modules/URILoadingHelper.sys.mjs b/browser/modules/URILoadingHelper.sys.mjs
-index bd2e54e914b171df9b8bcc7dcbc2388e9641f6c6..8b3cb6542bea3fb89e47adc93cb13f94447450e2 100644
+index b60820ef0cc62c27a8bab127218d625012153791..04cdd58ed4426af802f2868310140a8a33ec092b 100644
 --- a/browser/modules/URILoadingHelper.sys.mjs
 +++ b/browser/modules/URILoadingHelper.sys.mjs
-@@ -228,6 +228,7 @@ function openInWindow(url, params, sourceWindow) {
+@@ -231,6 +231,7 @@ function openInWindow(url, params, sourceWindow) {
      features,
      sa
    );
@@ -10,7 +10,7 @@ index bd2e54e914b171df9b8bcc7dcbc2388e9641f6c6..8b3cb6542bea3fb89e47adc93cb13f94
  }
  
  function openInCurrentTab(targetBrowser, url, uriObj, params) {
-@@ -545,7 +546,7 @@ export const URILoadingHelper = {
+@@ -548,7 +549,7 @@ export const URILoadingHelper = {
        // page. If a load request bounces off for the currently selected tab,
        // we'll open a new tab instead.
        let tab = w.gBrowser.getTabForBrowser(targetBrowser);
@@ -19,7 +19,7 @@ index bd2e54e914b171df9b8bcc7dcbc2388e9641f6c6..8b3cb6542bea3fb89e47adc93cb13f94
          where = "tab";
          targetBrowser = null;
        } else if (
-@@ -978,7 +979,7 @@ export const URILoadingHelper = {
+@@ -981,7 +982,7 @@ export const URILoadingHelper = {
          ignoreQueryString || replaceQueryString,
          ignoreFragmentWhenComparing
        );
@@ -28,9 +28,9 @@ index bd2e54e914b171df9b8bcc7dcbc2388e9641f6c6..8b3cb6542bea3fb89e47adc93cb13f94
        for (let i = 0; i < browsers.length; i++) {
          let browser = browsers[i];
          let browserCompare = cleanURL(
-@@ -1034,7 +1035,7 @@ export const URILoadingHelper = {
+@@ -1037,7 +1038,7 @@ export const URILoadingHelper = {
                }
-               aSplitView.ownerGlobal.focus();
+               aSplitView.documentGlobal.focus();
              } else {
 -              aWindow.gBrowser.tabContainer.selectedIndex = i;
 +              aWindow.gZenWorkspaces.switchIfNeeded(browser);
diff --git a/src/browser/themes/linux/browser-css.patch b/src/browser/themes/linux/browser-css.patch
index 79e5b201c..bc54b6b5d 100644
--- a/src/browser/themes/linux/browser-css.patch
+++ b/src/browser/themes/linux/browser-css.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/themes/linux/browser.css b/browser/themes/linux/browser.css
-index a99181fc249a7086e9886d86d85e8650595a0a0c..dd59739078080738d28bf59a1bb26fc0783bcac6 100644
+index 5e5d39787674d1d5ac8c39edccb04f8b8993fbb8..6c8b483ad19d9b26232592c68a7f2a6887161057 100644
 --- a/browser/themes/linux/browser.css
 +++ b/browser/themes/linux/browser.css
 @@ -14,7 +14,6 @@
diff --git a/src/browser/themes/osx/browser-css.patch b/src/browser/themes/osx/browser-css.patch
index 7ba8fdb25..3ec13a974 100644
--- a/src/browser/themes/osx/browser-css.patch
+++ b/src/browser/themes/osx/browser-css.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/themes/osx/browser.css b/browser/themes/osx/browser.css
-index 92162e2893f7c8aea92c354f3a12cccf48f7576e..3189d75c8e47f3f76ddc1227d3cffee6b09402eb 100644
+index 486e269838d07f9c1c7bef3601900f0538cfe73b..b41da95b6ea96ccf3bb4f536f4444e3b47702544 100644
 --- a/browser/themes/osx/browser.css
 +++ b/browser/themes/osx/browser.css
 @@ -37,7 +37,7 @@
diff --git a/src/browser/themes/shared/browser-shared-css.patch b/src/browser/themes/shared/browser-shared-css.patch
index 5d30bb388..403fc025f 100644
--- a/src/browser/themes/shared/browser-shared-css.patch
+++ b/src/browser/themes/shared/browser-shared-css.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/themes/shared/browser-shared.css b/browser/themes/shared/browser-shared.css
-index 70571d8f32d60d10e59e33cb83e38229de026fc6..8e420ed6f6838499553c55265a1e35f5c3801d35 100644
+index 2287d8f9fd5a86be00a0e9d7635a119fca446f50..7870cd7a15688e6046e586ec91861439c4182933 100644
 --- a/browser/themes/shared/browser-shared.css
 +++ b/browser/themes/shared/browser-shared.css
-@@ -253,13 +253,13 @@ body {
+@@ -347,13 +347,13 @@ body {
  
    @media (-moz-platform: macos) and (not (-moz-mac-rtl)) {
      &:-moz-locale-dir(ltr) {
diff --git a/src/browser/themes/shared/identity-block/identity-block-css.patch b/src/browser/themes/shared/identity-block/identity-block-css.patch
index 7f116dd53..9ba08a4b0 100644
--- a/src/browser/themes/shared/identity-block/identity-block-css.patch
+++ b/src/browser/themes/shared/identity-block/identity-block-css.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/themes/shared/identity-block/identity-block.css b/browser/themes/shared/identity-block/identity-block.css
-index 72b6673094b80e9c109ae6f125cd25c3e00260ef..d116ab9671b02bbb05eddec8318e1f2835c29f32 100644
+index f239438ce661ae2c33a3e04ecc6d403b3a56a42b..c3a237aa78cff7aaaf0a7b931dd2b4d99049c051 100644
 --- a/browser/themes/shared/identity-block/identity-block.css
 +++ b/browser/themes/shared/identity-block/identity-block.css
 @@ -7,7 +7,7 @@
diff --git a/src/browser/themes/shared/jar-inc-mn.patch b/src/browser/themes/shared/jar-inc-mn.patch
index f7ecba383..b07bcd68e 100644
--- a/src/browser/themes/shared/jar-inc-mn.patch
+++ b/src/browser/themes/shared/jar-inc-mn.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/themes/shared/jar.inc.mn b/browser/themes/shared/jar.inc.mn
-index e59fb7f095161348e442626997bbb6dc4e1e999e..488c540b07e5ce73048cebec0d75dd33f9dcabd4 100644
+index e3bdc11e449fb2cd2a4033a1d8c1bba00455e748..f928bc1a3a668dcc1a9ecde9945c6349e5903828 100644
 --- a/browser/themes/shared/jar.inc.mn
 +++ b/browser/themes/shared/jar.inc.mn
-@@ -343,3 +343,5 @@
+@@ -352,3 +352,5 @@
  
    skin/classic/browser/illustrations/market-opt-in.svg         (../shared/illustrations/market-opt-in.svg)
    skin/classic/browser/illustrations/yelpRealtime-opt-in.svg   (../shared/illustrations/yelpRealtime-opt-in.svg)
diff --git a/src/browser/themes/shared/tabbrowser/content-area-css.patch b/src/browser/themes/shared/tabbrowser/content-area-css.patch
index d4b6ab791..0c5d741bc 100644
--- a/src/browser/themes/shared/tabbrowser/content-area-css.patch
+++ b/src/browser/themes/shared/tabbrowser/content-area-css.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/themes/shared/tabbrowser/content-area.css b/browser/themes/shared/tabbrowser/content-area.css
-index 05c1261f0085794e5e81dc8c1ef24fe1a9c5ec82..d0a1938b629338184bc462b4da1e10e1a4d6a4e7 100644
+index dff8162a84dbbe6873fa771828698b47b80d0472..e0c378af7a5cc607c2de1c9b5693adb04ac6adbd 100644
 --- a/browser/themes/shared/tabbrowser/content-area.css
 +++ b/browser/themes/shared/tabbrowser/content-area.css
-@@ -85,7 +85,6 @@
+@@ -171,7 +171,6 @@
    min-height: 0;
  
    /* We want to be able to show the frame color behind the clipped radiused corner */
@@ -10,7 +10,7 @@ index 05c1261f0085794e5e81dc8c1ef24fe1a9c5ec82..d0a1938b629338184bc462b4da1e10e1
  
    /* stylelint-disable-next-line media-query-no-invalid */
    @media -moz-pref("sidebar.revamp") {
-@@ -146,7 +145,6 @@
+@@ -235,7 +234,6 @@
    }
  
    browser:is([blank], [pendingpaint]) {
@@ -18,7 +18,7 @@ index 05c1261f0085794e5e81dc8c1ef24fe1a9c5ec82..d0a1938b629338184bc462b4da1e10e1
    }
  
    /* Exclude browsers with smartwindow-content attribute which inherit
-@@ -440,7 +438,7 @@ split-view-footer {
+@@ -555,7 +553,7 @@ split-view-footer {
  
  .dialogStack {
    z-index: var(--browser-stack-z-index-dialog-stack);
@@ -27,7 +27,7 @@ index 05c1261f0085794e5e81dc8c1ef24fe1a9c5ec82..d0a1938b629338184bc462b4da1e10e1
    inset: 0;
    /* --browser-with-dialog set on browser[tabDialogShowing], we want to position the overlay
       only on the top of the <browser> element so it doesn't overlap the DevTools toolbox */
-@@ -607,7 +605,7 @@ split-view-footer {
+@@ -722,7 +720,7 @@ split-view-footer {
  
  .dialogOverlay[topmost="true"],
  #window-modal-dialog::backdrop {
diff --git a/src/browser/themes/shared/tabbrowser/ctrlTab-css.patch b/src/browser/themes/shared/tabbrowser/ctrlTab-css.patch
index e990f547b..a10d1b45d 100644
--- a/src/browser/themes/shared/tabbrowser/ctrlTab-css.patch
+++ b/src/browser/themes/shared/tabbrowser/ctrlTab-css.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/themes/shared/tabbrowser/ctrlTab.css b/browser/themes/shared/tabbrowser/ctrlTab.css
-index d016bb363f306d7f6b08554f5029d425c01ca358..0f8e4d0a1aa2f9958124ea75423f83eb6ef35afe 100644
+index ad4819fec3fc71c15db0952957ec17dc5cb82e98..9fa29871afb967af3012e6c52d766f1134eab765 100644
 --- a/browser/themes/shared/tabbrowser/ctrlTab.css
 +++ b/browser/themes/shared/tabbrowser/ctrlTab.css
 @@ -11,6 +11,7 @@
diff --git a/src/browser/themes/shared/tabbrowser/tabs-css.patch b/src/browser/themes/shared/tabbrowser/tabs-css.patch
index 18034a267..f64d8892b 100644
--- a/src/browser/themes/shared/tabbrowser/tabs-css.patch
+++ b/src/browser/themes/shared/tabbrowser/tabs-css.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/themes/shared/tabbrowser/tabs.css b/browser/themes/shared/tabbrowser/tabs.css
-index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22c000e105 100644
+index b70af17781a4128593e3c092cf0f6aec81ab5f9a..1c11c2bf9dcde9d468959e9115a48cf272870987 100644
 --- a/browser/themes/shared/tabbrowser/tabs.css
 +++ b/browser/themes/shared/tabbrowser/tabs.css
-@@ -25,7 +25,7 @@
+@@ -34,7 +34,7 @@
    --tab-group-line-thickness: 2px;
    --tab-group-line-toolbar-border-distance: 1px;
    /* Collapsed tabs should be square, so set width to match the min height */
@@ -11,15 +11,15 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
    --tab-collapsed-width: calc(var(--tab-collapsed-background-width) + 2 * var(--tab-inner-inline-margin));
    --tab-pinned-min-width-expanded: calc(var(--tab-pinned-expanded-background-width) + 2 * var(--tab-pinned-margin-inline-expanded));
    --tab-note-icon-end-margin: var(--dimension-4);
-@@ -276,7 +276,6 @@ tab-split-view-wrapper[dragtarget] {
+@@ -285,7 +285,6 @@ tab-split-view-wrapper[dragtarget] {
    }
  
    :root:not([uidensity="compact"], [sidebar-expand-on-hover]) &[pinned] {
--    padding: 0 10px;
+-    padding: 0 calc((var(--tab-min-height) - var(--icon-size)) / 2);
    }
  
    &:is([selected], [multiselected]) {
-@@ -290,6 +289,7 @@ tab-split-view-wrapper[dragtarget] {
+@@ -299,6 +298,7 @@ tab-split-view-wrapper[dragtarget] {
      border-radius: inherit;
      position: relative;
      overflow: hidden;
@@ -27,7 +27,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
  
      &::before {
        position: absolute;
-@@ -489,10 +489,6 @@ tab-split-view-wrapper[dragtarget] {
+@@ -498,10 +498,6 @@ tab-split-view-wrapper[dragtarget] {
    /* stylelint-disable-next-line media-query-no-invalid */
    @media -moz-pref("browser.tabs.fadeOutUnloadedTabs") {
      &[pending] {
@@ -38,7 +38,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
        opacity: 0.5;
        /* Fade the favicon out */
        transition-property: filter, opacity;
-@@ -509,10 +505,6 @@ tab-split-view-wrapper[dragtarget] {
+@@ -518,10 +514,6 @@ tab-split-view-wrapper[dragtarget] {
    /* stylelint-disable-next-line media-query-no-invalid */
    @media -moz-pref("browser.tabs.fadeOutExplicitlyUnloadedTabs") {
      &[pending][discarded] {
@@ -49,8 +49,8 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
        opacity: 0.5;
        /* Fade the favicon out */
        transition-property: filter, opacity;
-@@ -581,7 +573,7 @@ tab-split-view-wrapper[dragtarget] {
-   z-index: 1; /* Overlay tab title */
+@@ -596,7 +588,7 @@ tab-split-view-wrapper[dragtarget] {
+   }
  
    #tabbrowser-tabs[orient="vertical"] & {
 -    top: 7px;
@@ -58,7 +58,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
    }
  
    &[crashed] {
-@@ -589,7 +581,7 @@ tab-split-view-wrapper[dragtarget] {
+@@ -604,7 +596,7 @@ tab-split-view-wrapper[dragtarget] {
    }
  
    #tabbrowser-tabs[orient="vertical"]:not([expanded]) &:not([crashed]),
@@ -67,7 +67,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
      &[soundplaying] {
        list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-playing-small.svg");
      }
-@@ -644,7 +636,7 @@ tab-split-view-wrapper[dragtarget] {
+@@ -661,7 +653,7 @@ tab-split-view-wrapper[dragtarget] {
      }
    }
  
@@ -76,7 +76,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
    &[crashed] {
      display: revert;
    }
-@@ -810,7 +802,7 @@ tab-split-view-wrapper[dragtarget] {
+@@ -829,7 +821,7 @@ tab-split-view-wrapper[dragtarget] {
        has not been added to root. There are certain scenarios when that attribute is temporarily
        removed from root such as when toggling the sidebar to expand with the toolbar button. */
      #tabbrowser-tabs[orient="horizontal"] &:not([pinned]):not([crashed]),
@@ -85,7 +85,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
        &:is([soundplaying], [muted], [activemedia-blocked]) {
          display: flex;
        }
-@@ -1026,7 +1018,6 @@ tab-split-view-wrapper[dragtarget] {
+@@ -1053,7 +1045,6 @@ tab-split-view-wrapper[dragtarget] {
  .tabbrowser-tab:is([image], [pinned]) > .tab-stack > .tab-content[attention]:not([selected]),
  .tabbrowser-tab > .tab-stack > .tab-content[pinned][titlechanged]:not([selected]),
  #tabbrowser-tabs[orient="vertical"] .tabbrowser-tab > .tab-stack > .tab-content[titlechanged]:not([selected]) {
@@ -93,7 +93,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
    background-position: center bottom 6.5px;
    background-size: 4px 4px;
    background-repeat: no-repeat;
-@@ -1635,7 +1626,7 @@ tab-group {
+@@ -1813,7 +1804,7 @@ tab-group {
  }
  
  #tabbrowser-tabs[orient="vertical"][expanded] {
@@ -102,7 +102,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
    &[movingtab][movingtab-addToGroup]:not([movingtab-group], [movingtab-ungroup]) .tabbrowser-tab:is(:active, [multiselected]) {
      margin-inline-start: var(--space-medium);
    }
-@@ -2128,7 +2119,7 @@ tab-group {
+@@ -2378,7 +2369,7 @@ tab-group {
    }
  }
  
@@ -111,7 +111,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
  #vertical-tabs-newtab-button {
    appearance: none;
    min-height: var(--tab-min-height);
-@@ -2139,7 +2130,7 @@ tab-group {
+@@ -2389,7 +2380,7 @@ tab-group {
    margin-inline: var(--tab-inner-inline-margin);
  
    #tabbrowser-tabs[orient="vertical"]:not([expanded]) & > .toolbarbutton-text {
@@ -120,7 +120,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
    }
  
    &:hover {
-@@ -2163,7 +2154,7 @@ tab-group {
+@@ -2413,7 +2404,7 @@ tab-group {
   * flex container. #tabs-newtab-button is a child of the arrowscrollbox where
   * we don't want a gap (between tabs), so we have to add some margin.
   */
@@ -129,7 +129,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
    margin-block: var(--tab-block-margin);
  }
  
-@@ -2351,7 +2342,6 @@ tab-group {
+@@ -2610,7 +2601,6 @@ tab-group {
  
    &:not([expanded]) {
      .tabbrowser-tab[pinned] {
@@ -137,7 +137,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
      }
  
      .tab-background {
-@@ -2391,8 +2381,8 @@ tab-group {
+@@ -2651,8 +2641,8 @@ tab-group {
        display: block;
        position: absolute;
        inset: auto;
@@ -148,7 +148,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
  
        &:-moz-window-inactive {
          background-image:
-@@ -2480,9 +2470,6 @@ tab-group {
+@@ -2753,9 +2743,6 @@ tab-group {
    ~ #tabbrowser-tabs[orient="horizontal"]::before {
      display: flex;
      content: "";
@@ -158,7 +158,7 @@ index 2ce8b135dcf087a2e2cb75c3417be8c9ba4178e6..3c297614afd323e210ebf0018d4aca22
    }
  }
  
-@@ -2515,7 +2502,6 @@ toolbar:not(#TabsToolbar) #firefox-view-button {
+@@ -2788,7 +2775,6 @@ toolbar:not(#TabsToolbar) #firefox-view-button {
    list-style-image: url(chrome://global/skin/icons/plus.svg);
  }
  
diff --git a/src/browser/themes/shared/toolbarbuttons-css.patch b/src/browser/themes/shared/toolbarbuttons-css.patch
index 7c52385f6..917122e5e 100644
--- a/src/browser/themes/shared/toolbarbuttons-css.patch
+++ b/src/browser/themes/shared/toolbarbuttons-css.patch
@@ -1,59 +1,59 @@
 diff --git a/browser/themes/shared/toolbarbuttons.css b/browser/themes/shared/toolbarbuttons.css
-index 829501008d7b6fd6bddf899f3cf599a68ff216a0..cbdc770d56c4053d0b9afc13322f072c3376eb30 100644
+index 94b1a2a841d8fd47a491616d52e5bf544f0c0bf9..9e98266b98c6b66fed26fec12fa3391fc5fcc79b 100644
 --- a/browser/themes/shared/toolbarbuttons.css
 +++ b/browser/themes/shared/toolbarbuttons.css
 @@ -13,20 +13,6 @@
-     --toolbarbutton-inner-padding: var(--toolbarbutton-inner-padding-touch);
+     --toolbarbutton-padding-inner: var(--toolbarbutton-padding-inner-touch);
      --bookmark-block-padding: 7px;
    }
 -  @media (width <= 900px) {
--    --toolbarbutton-outer-padding: var(--toolbarbutton-outer-padding-narrow);
+-    --toolbarbutton-padding-outer: var(--toolbarbutton-padding-outer-narrow);
 -  }
 -  @media (width <= 800px) {
--    --toolbarbutton-inner-padding: var(--toolbarbutton-inner-padding-narrow);
+-    --toolbarbutton-padding-inner: var(--toolbarbutton-padding-inner-narrow);
 -    &:where([uidensity="touch"]) {
--      --toolbarbutton-inner-padding: var(--toolbarbutton-inner-padding-touch-narrow);
+-      --toolbarbutton-padding-inner: var(--toolbarbutton-padding-inner-touch-narrow);
 -    }
 -  }
 -  /* 700px is just above half of the popular 1366px screen width, so two browser
 -     windows put next to each other will be below this threshold. */
 -  @media (width <= 700px) {
--    --toolbarbutton-inner-padding: var(--toolbarbutton-inner-padding-compact);
+-    --toolbarbutton-padding-inner: var(--toolbarbutton-padding-inner-compact);
 -  }
    &:where([uidensity="compact"]) {
-     --toolbarbutton-inner-padding: var(--toolbarbutton-inner-padding-compact);
+     --toolbarbutton-padding-inner: var(--toolbarbutton-padding-inner-compact);
      --bookmark-block-padding: 1px;
 @@ -123,9 +109,7 @@
  #TabsToolbar {
    /* Override the inner padding to ensure the dimensions match the tabs, but also making sure
       different types of buttons (combined-buttons-dropmarker or text) still look correct. */
 -  @media (width > 900px) {
-     --toolbarbutton-inner-padding: calc((var(--tab-min-height) - 16px) / 2);
+     --toolbarbutton-padding-inner: calc((var(--tab-min-height) - 16px) / 2);
 -  }
  }
  
  /* Primary toolbar buttons */
-@@ -204,8 +188,8 @@ toolbar .toolbarbutton-1 {
+@@ -205,8 +189,8 @@ toolbar .toolbarbutton-1 {
  
    > .toolbarbutton-icon {
      /* horizontal padding + actual icon width */
--    width: calc(2 * var(--toolbarbutton-inner-padding) + 16px);
--    height: calc(2 * var(--toolbarbutton-inner-padding) + 16px);
-+    width: calc(2 * var(--toolbarbutton-inner-padding) + var(--zen-toolbar-button-size, 16px));
-+    height: calc(2 * var(--toolbarbutton-inner-padding) + var(--zen-toolbar-button-size, 16px));
+-    width: calc(2 * var(--toolbarbutton-padding-inner) + 16px);
+-    height: calc(2 * var(--toolbarbutton-padding-inner) + 16px);
++    width: calc(2 * var(--toolbarbutton-padding-inner) + var(--zen-toolbar-button-size, 16px));
++    height: calc(2 * var(--toolbarbutton-padding-inner) + var(--zen-toolbar-button-size, 16px));
    }
  
    > .toolbarbutton-text {
-@@ -215,7 +199,7 @@ toolbar .toolbarbutton-1 {
+@@ -216,7 +200,7 @@ toolbar .toolbarbutton-1 {
       * height as the button icons and the same vertical padding, but as a minimum,
       * because otherwise an increase in text sizes would break things.
       */
--    min-height: calc(16px + 2 * var(--toolbarbutton-inner-padding));
-+    min-height: calc(var(--zen-toolbar-button-size, 16px) + 2 * var(--toolbarbutton-inner-padding));
+-    min-height: calc(16px + 2 * var(--toolbarbutton-padding-inner));
++    min-height: calc(var(--zen-toolbar-button-size, 16px) + 2 * var(--toolbarbutton-padding-inner));
  
      @media (-moz-platform: macos) {
-       padding-top: calc(var(--toolbarbutton-inner-padding) + 1px);
-@@ -325,7 +309,7 @@ toolbar .toolbaritem-combined-buttons {
+       padding-top: calc(var(--toolbarbutton-padding-inner) + 1px);
+@@ -326,7 +310,7 @@ toolbar .toolbaritem-combined-buttons {
  #nav-bar-overflow-button {
    list-style-image: url("chrome://global/skin/icons/chevron.svg");
  
@@ -62,7 +62,7 @@ index 829501008d7b6fd6bddf899f3cf599a68ff216a0..cbdc770d56c4053d0b9afc13322f072c
      display: none;
    }
  
-@@ -535,7 +519,7 @@ toolbarbutton.bookmark-item:not(.subviewbutton) {
+@@ -536,7 +520,7 @@ toolbarbutton.bookmark-item:not(.subviewbutton) {
       */
      align-items: stretch;
      > .toolbarbutton-icon {
diff --git a/src/browser/themes/shared/urlbar-searchbar-css.patch b/src/browser/themes/shared/urlbar-searchbar-css.patch
index 6871d5e67..2fb638c24 100644
--- a/src/browser/themes/shared/urlbar-searchbar-css.patch
+++ b/src/browser/themes/shared/urlbar-searchbar-css.patch
@@ -1,8 +1,8 @@
 diff --git a/browser/themes/shared/urlbar-searchbar.css b/browser/themes/shared/urlbar-searchbar.css
-index 3f46c918e125f9531a536a09358c980b2c923864..cba6f00318ce5dc7b6717b6c9afd2ee916715f8f 100644
+index cbd074b9bacfbf7cc82a67ad586ebc31c4d85970..993c61ba389cb9d912b2cebee9d71bec772e3a7d 100644
 --- a/browser/themes/shared/urlbar-searchbar.css
 +++ b/browser/themes/shared/urlbar-searchbar.css
-@@ -11,7 +11,7 @@
+@@ -12,7 +12,7 @@
    /* Usually we wouldn't need snapping border widths manually, but we use this
     * for other layout calculations too */
    --urlbar-container-border-width: max(env(hairline), round(down, 1px, env(hairline)));
@@ -11,7 +11,7 @@ index 3f46c918e125f9531a536a09358c980b2c923864..cba6f00318ce5dc7b6717b6c9afd2ee9
    --urlbar-container-inset: calc(var(--urlbar-container-border-width) + var(--urlbar-container-padding));
  
    @media (max-width: 770px) {
-@@ -54,7 +54,7 @@ toolbar[inactive="true"] .urlbar,
+@@ -55,7 +55,7 @@ toolbar[inactive="true"] .urlbar,
  .urlbar:not([usertyping]) > .urlbar-input-container > .urlbar-go-button,
  .urlbar:not(#searchbar-new, [focused]) > .urlbar-input-container > .urlbar-go-button,
  #urlbar-revert-button-container {
@@ -20,7 +20,7 @@ index 3f46c918e125f9531a536a09358c980b2c923864..cba6f00318ce5dc7b6717b6c9afd2ee9
  }
  
  /* Document Picture-in-Picture API window */
-@@ -201,6 +201,10 @@ toolbar[inactive="true"] .urlbar,
+@@ -205,6 +205,10 @@ toolbar[inactive="true"] .urlbar,
      mask-image: linear-gradient(to right, transparent var(--urlbar-scheme-size), black calc(var(--urlbar-scheme-size) + 3ch));
    }
  
@@ -31,18 +31,18 @@ index 3f46c918e125f9531a536a09358c980b2c923864..cba6f00318ce5dc7b6717b6c9afd2ee9
    /* stylelint-disable-next-line media-query-no-invalid */
    @media -moz-pref("browser.nova.enabled") {
      &::selection {
-@@ -343,10 +347,14 @@ toolbar[inactive="true"] .urlbar,
+@@ -429,10 +433,14 @@ toolbar[inactive="true"] .urlbar,
  
- .urlbar[breakout][breakout-extend] {
-   height: auto;
-+  align-items: center;
-+  :root:not([zen-single-toolbar='true']) & {
-   margin-left: calc(-1 * var(--urlbar-margin-inline));
-+  }
-   width: calc(var(--urlbar-width) + 2 * var(--urlbar-margin-inline));
- 
-   > .urlbar-input-container {
+   .urlbar[breakout][breakout-extend] {
+     height: auto;
 +    align-items: center;
-     height: var(--urlbar-container-height);
-     padding-block: calc((var(--urlbar-container-height) - var(--urlbar-height)) / 2 + var(--urlbar-container-padding));
-     padding-inline: calc(var(--urlbar-margin-inline) + var(--urlbar-container-padding));
++    :root:not([zen-single-toolbar='true']) & {
+     margin-left: calc(-1 * var(--urlbar-margin-inline));
++    }
+     width: calc(var(--urlbar-width) + 2 * var(--urlbar-margin-inline));
+ 
+     > .urlbar-input-container {
++      align-items: center;
+       height: var(--urlbar-container-height);
+       padding-block: calc((var(--urlbar-container-height) - var(--urlbar-height)) / 2 + var(--urlbar-container-padding));
+       padding-inline: calc(var(--urlbar-margin-inline) + var(--urlbar-container-padding));
diff --git a/src/browser/themes/shared/urlbar/variables-css.patch b/src/browser/themes/shared/urlbar/variables-css.patch
index 1e1ae2b2d..7fe83c809 100644
--- a/src/browser/themes/shared/urlbar/variables-css.patch
+++ b/src/browser/themes/shared/urlbar/variables-css.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/themes/shared/urlbar/variables.css b/browser/themes/shared/urlbar/variables.css
-index 34ab3df5ed433dafed00799c902afc276a722862..1e71860631f33839bdc7e1ec3a1e877bef744b55 100644
+index 64eb46b3061504e590d3fcee0c30c902f68764fe..6e7ffe043c5676da27a6eb5b105dac2fde3309da 100644
 --- a/browser/themes/shared/urlbar/variables.css
 +++ b/browser/themes/shared/urlbar/variables.css
 @@ -9,7 +9,7 @@
diff --git a/src/browser/themes/shared/urlbar/view-proton-css.patch b/src/browser/themes/shared/urlbar/view-proton-css.patch
index e95474f21..9ae3d6c26 100644
--- a/src/browser/themes/shared/urlbar/view-proton-css.patch
+++ b/src/browser/themes/shared/urlbar/view-proton-css.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/themes/shared/urlbar/view-proton.css b/browser/themes/shared/urlbar/view-proton.css
-index 9e041b67988f590bdbea48514937b1fa25c9785c..05507782b91858dff3e181843314af7956528ba9 100644
+index 0b10c077a555e5d0fc488a3bb1b1b920f433204c..38e9d14e9838f2b8de6f654ff4e0700bb65506f0 100644
 --- a/browser/themes/shared/urlbar/view-proton.css
 +++ b/browser/themes/shared/urlbar/view-proton.css
 @@ -14,7 +14,7 @@
@@ -9,10 +9,10 @@ index 9e041b67988f590bdbea48514937b1fa25c9785c..05507782b91858dff3e181843314af79
 -  --urlbarView-results-padding: 7px;
 +  --urlbarView-results-padding: 8px;
    --urlbarView-row-gutter: var(--space-xxsmall);
-   --urlbarView-item-inline-padding: var(--urlbar-icon-padding);
-   --urlbarView-item-block-padding: 6px;
-@@ -168,7 +168,6 @@
-       min-height: 32px;
+   --urlbarView-row-padding-inline: var(--urlbar-icon-padding);
+   --urlbarView-row-padding-block: 6px;
+@@ -174,7 +174,6 @@
+       min-height: var(--urlbarView-row-min-height);
      }
      :root[uidensity="touch"] & {
 -      padding-block: 11px;
diff --git a/src/browser/themes/windows/browser-css.patch b/src/browser/themes/windows/browser-css.patch
index c5c56e61c..36d57a1d6 100644
--- a/src/browser/themes/windows/browser-css.patch
+++ b/src/browser/themes/windows/browser-css.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/themes/windows/browser.css b/browser/themes/windows/browser.css
-index 039cd084f23ef27eb4a1d359c8caca690eb75eb5..432302ce8d29de1836aaf0a756b3aa0ebc86562a 100644
+index 7dcb386d38d25ee483f19322ea327b4dc6a244e0..c30a16e503224691572118efa0f1ff9e108895b3 100644
 --- a/browser/themes/windows/browser.css
 +++ b/browser/themes/windows/browser.css
 @@ -41,7 +41,6 @@
@@ -10,7 +10,7 @@ index 039cd084f23ef27eb4a1d359c8caca690eb75eb5..432302ce8d29de1836aaf0a756b3aa0e
      }
  
      /* Using a semitransparent background preserves the tinting from the backdrop.
-@@ -70,14 +69,13 @@
+@@ -73,14 +72,13 @@
  }
  
  /* This is needed for Windows 10, see bug 1961257 */
diff --git a/src/devtools/startup/DevToolsStartup-sys-mjs.patch b/src/devtools/startup/DevToolsStartup-sys-mjs.patch
index 766afd148..fc1e22d13 100644
--- a/src/devtools/startup/DevToolsStartup-sys-mjs.patch
+++ b/src/devtools/startup/DevToolsStartup-sys-mjs.patch
@@ -1,12 +1,12 @@
 diff --git a/devtools/startup/DevToolsStartup.sys.mjs b/devtools/startup/DevToolsStartup.sys.mjs
-index d604d0e00c623026928d72b1bcb1ce82e6bb6d4a..e3341c9ffc6db9b4bf360445ea031fc558e6076b 100644
+index ab008a13b4a6a31b18d5587e93e1ff589693cdac..946d1c70600fcfda5452d130dd1924c92d502562 100644
 --- a/devtools/startup/DevToolsStartup.sys.mjs
 +++ b/devtools/startup/DevToolsStartup.sys.mjs
 @@ -836,6 +836,9 @@ export class DevToolsStartup {
      // account (see bug 832984).
      const mainKeyset = doc.getElementById("mainKeyset");
      mainKeyset.parentNode.insertBefore(keyset, mainKeyset);
-+    mainKeyset.ownerGlobal.setTimeout(() => {
++    mainKeyset.documentGlobal.setTimeout(() => {
 +      window.dispatchEvent(new window.Event("zen-devtools-keyset-added"));
 +    }, 0);
    }
diff --git a/src/docshell/base/BrowsingContext-h.patch b/src/docshell/base/BrowsingContext-h.patch
index d46eee4d5..12860e76c 100644
--- a/src/docshell/base/BrowsingContext-h.patch
+++ b/src/docshell/base/BrowsingContext-h.patch
@@ -1,5 +1,5 @@
 diff --git a/docshell/base/BrowsingContext.h b/docshell/base/BrowsingContext.h
-index 4e20d7b602932621baf9082f6d28911701b7aa5b..d6e141b235ce60be5db86bc40578d0741b79b014 100644
+index 02abb6ab9562a7b41f4a95a6289c80da8d1176e8..1722802021f331338fc10c768301a953e582b711 100644
 --- a/docshell/base/BrowsingContext.h
 +++ b/docshell/base/BrowsingContext.h
 @@ -265,6 +265,9 @@ struct EmbedderColorSchemes {
@@ -12,7 +12,7 @@ index 4e20d7b602932621baf9082f6d28911701b7aa5b..d6e141b235ce60be5db86bc40578d074
    /* Whether we can execute scripts in this BrowsingContext. Has no effect    \
     * unless scripts are also allowed in the parent WindowContext. */          \
    FIELD(AllowJavascript, bool)                                                \
-@@ -680,6 +683,11 @@ class BrowsingContext : public nsILoadContext, public nsWrapperCache {
+@@ -671,6 +674,11 @@ class BrowsingContext : public nsILoadContext, public nsWrapperCache {
  
    bool FullscreenAllowed() const;
  
@@ -24,7 +24,7 @@ index 4e20d7b602932621baf9082f6d28911701b7aa5b..d6e141b235ce60be5db86bc40578d074
    float FullZoom() const { return GetFullZoom(); }
    float TextZoom() const { return GetTextZoom(); }
  
-@@ -1284,6 +1292,9 @@ class BrowsingContext : public nsILoadContext, public nsWrapperCache {
+@@ -1275,6 +1283,9 @@ class BrowsingContext : public nsILoadContext, public nsWrapperCache {
    }
  
    void DidSet(FieldIndex<IDX_SessionStoreEpoch>, uint32_t aOldValue);
diff --git a/src/dom/base/Document-cpp.patch b/src/dom/base/Document-cpp.patch
index df2270c12..9b1b29f1f 100644
--- a/src/dom/base/Document-cpp.patch
+++ b/src/dom/base/Document-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/dom/base/Document.cpp b/dom/base/Document.cpp
-index f5dc958b940b806cc471760ce91a26b1111aafa5..d6841cbef64374d14bc2941651e33669c28e2958 100644
+index 328b7524810322561700347fa7f26403897635a8..58d33d68e050d11ea712413ad5c2170a112e404a 100644
 --- a/dom/base/Document.cpp
 +++ b/dom/base/Document.cpp
-@@ -465,6 +465,7 @@
+@@ -467,6 +467,7 @@
  #include "prtime.h"
  #include "prtypes.h"
  #include "xpcpublic.h"
@@ -10,7 +10,7 @@ index f5dc958b940b806cc471760ce91a26b1111aafa5..d6841cbef64374d14bc2941651e33669
  
  // clang-format off
  #include "mozilla/Encoding.h"
-@@ -3275,6 +3276,10 @@ void Document::FillStyleSetUserAndUASheets() {
+@@ -3198,6 +3199,10 @@ void Document::FillStyleSetUserAndUASheets() {
    for (StyleSheet* sheet : *sheetService->UserStyleSheets()) {
      styleSet.AppendStyleSheet(*sheet);
    }
diff --git a/src/dom/canvas/CanvasRenderingContext2D-cpp.patch b/src/dom/canvas/CanvasRenderingContext2D-cpp.patch
index 5a4821efc..9b75d72ff 100644
--- a/src/dom/canvas/CanvasRenderingContext2D-cpp.patch
+++ b/src/dom/canvas/CanvasRenderingContext2D-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/dom/canvas/CanvasRenderingContext2D.cpp b/dom/canvas/CanvasRenderingContext2D.cpp
-index ca400d3aed179ebef8e005206f29b419ae56afc4..4d4e56f4a222bd61dea82638f3e0b30fbe56a176 100644
+index 9c0d63f030848d379a66b7229b8378b214796c25..9409764996ed58974d88de68bc37d3b9d081ed9e 100644
 --- a/dom/canvas/CanvasRenderingContext2D.cpp
 +++ b/dom/canvas/CanvasRenderingContext2D.cpp
-@@ -1326,7 +1326,8 @@ Maybe<nscolor> CanvasRenderingContext2D::ParseColor(
+@@ -1327,7 +1327,8 @@ Maybe<nscolor> CanvasRenderingContext2D::ParseColor(
      RefPtr<const ComputedStyle> canvasStyle =
          nsComputedDOMStyle::GetComputedStyle(mCanvasElement);
      if (canvasStyle) {
diff --git a/src/dom/chrome-webidl/BrowsingContext-webidl.patch b/src/dom/chrome-webidl/BrowsingContext-webidl.patch
index fa4f77e9d..9486e109f 100644
--- a/src/dom/chrome-webidl/BrowsingContext-webidl.patch
+++ b/src/dom/chrome-webidl/BrowsingContext-webidl.patch
@@ -1,5 +1,5 @@
 diff --git a/dom/chrome-webidl/BrowsingContext.webidl b/dom/chrome-webidl/BrowsingContext.webidl
-index 43f28a6aad9d0dd3e3c908e8472244fc6aa32a74..a6d47522f89589c1e69a8e7570c17b7e05330bb6 100644
+index d0508a8c29e5bd008213f781beb8eb1fcb458fb8..31130786d4f8e22f2327162c001f786a198bf582 100644
 --- a/dom/chrome-webidl/BrowsingContext.webidl
 +++ b/dom/chrome-webidl/BrowsingContext.webidl
 @@ -179,6 +179,10 @@ interface BrowsingContext {
diff --git a/src/dom/chrome-webidl/MediaController-webidl.patch b/src/dom/chrome-webidl/MediaController-webidl.patch
index cd41a9cb5..86de13b0d 100644
--- a/src/dom/chrome-webidl/MediaController-webidl.patch
+++ b/src/dom/chrome-webidl/MediaController-webidl.patch
@@ -1,5 +1,5 @@
 diff --git a/dom/chrome-webidl/MediaController.webidl b/dom/chrome-webidl/MediaController.webidl
-index eea39e9f70b1ba216dc5131bc3aa8b6ef46ca5ea..fd24ad430aeb64c4d622b3765af359579a903c40 100644
+index 6063e86e747dac87aafc865af95800daef2a5b9d..7fc4e72ee73a16b9ec2c1b9d11d926246fb7f7b6 100644
 --- a/dom/chrome-webidl/MediaController.webidl
 +++ b/dom/chrome-webidl/MediaController.webidl
 @@ -23,6 +23,12 @@ enum MediaControlKey {
diff --git a/src/dom/html/HTMLInputElement-cpp.patch b/src/dom/html/HTMLInputElement-cpp.patch
index cae2a6ce0..ff16925cf 100644
--- a/src/dom/html/HTMLInputElement-cpp.patch
+++ b/src/dom/html/HTMLInputElement-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/dom/html/HTMLInputElement.cpp b/dom/html/HTMLInputElement.cpp
-index 3374a88b9335de1659df548fe8c18610f675b336..540f22697e7b85bca2fd6d3fe952ed3944216e17 100644
+index e3698a2cbcfd13ce6075e0a155c46191dfc15a57..99c46e11bb80224986c757ab9a9a7dca4d8982d5 100644
 --- a/dom/html/HTMLInputElement.cpp
 +++ b/dom/html/HTMLInputElement.cpp
 @@ -768,7 +768,7 @@ static void SerializeColorForHTMLCompatibility(const StyleAbsoluteColor& aColor,
diff --git a/src/dom/media/mediacontrol/MediaController-cpp.patch b/src/dom/media/mediacontrol/MediaController-cpp.patch
index 4f9cf1b75..2960c6f49 100644
--- a/src/dom/media/mediacontrol/MediaController-cpp.patch
+++ b/src/dom/media/mediacontrol/MediaController-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/dom/media/mediacontrol/MediaController.cpp b/dom/media/mediacontrol/MediaController.cpp
-index f28ec5e406bfeefd624c9538878d423e99b0df6a..afb60df8ddec86c0c83584b8325add8d1c373d0e 100644
+index e7fd71ac228370e4805f86d213e40c13e1520ad3..c82d485f1c30af1b4879c18fd4e33e0017cb6abc 100644
 --- a/dom/media/mediacontrol/MediaController.cpp
 +++ b/dom/media/mediacontrol/MediaController.cpp
 @@ -49,6 +49,25 @@ void MediaController::GetSupportedKeys(
@@ -28,7 +28,7 @@ index f28ec5e406bfeefd624c9538878d423e99b0df6a..afb60df8ddec86c0c83584b8325add8d
  void MediaController::GetMetadata(MediaMetadataInit& aMetadata,
                                    ErrorResult& aRv) {
    if (!IsActive() || mShutdown) {
-@@ -435,6 +454,7 @@ void MediaController::SetIsInPictureInPictureMode(
+@@ -457,6 +476,7 @@ void MediaController::SetIsInPictureInPictureMode(
    ForceToBecomeMainControllerIfNeeded();
    UpdateDeactivationTimerIfNeeded();
    mPictureInPictureModeChangedEvent.Notify(mIsInPictureInPictureMode);
diff --git a/src/dom/media/mediacontrol/MediaController-h.patch b/src/dom/media/mediacontrol/MediaController-h.patch
index dffc7d160..b5d62cfd3 100644
--- a/src/dom/media/mediacontrol/MediaController-h.patch
+++ b/src/dom/media/mediacontrol/MediaController-h.patch
@@ -1,5 +1,5 @@
 diff --git a/dom/media/mediacontrol/MediaController.h b/dom/media/mediacontrol/MediaController.h
-index ea05df396bcaa8f5e236105585c0a177496c8bd9..e064f279383004bdbdb030ecb23289a893c11a8c 100644
+index 101c952b23cb67b9fe911eefa3f78a88f5b6378c..e2c3d511f505bd9739bba7315f4f248effb77400 100644
 --- a/dom/media/mediacontrol/MediaController.h
 +++ b/dom/media/mediacontrol/MediaController.h
 @@ -91,6 +91,7 @@ class MediaController final : public DOMEventTargetHelper,
@@ -9,4 +9,4 @@ index ea05df396bcaa8f5e236105585c0a177496c8bd9..e064f279383004bdbdb030ecb23289a8
 +  void GetPositionState(MediaControllerPositionState& aPositionState, ErrorResult& aRv);
    IMPL_EVENT_HANDLER(activated);
    IMPL_EVENT_HANDLER(deactivated);
-   IMPL_EVENT_HANDLER(metadatachange);
+   IMPL_EVENT_HANDLER(audiblechange);
diff --git a/src/dom/media/mediacontrol/MediaStatusManager-cpp.patch b/src/dom/media/mediacontrol/MediaStatusManager-cpp.patch
index 4ec84b181..c32f7b95d 100644
--- a/src/dom/media/mediacontrol/MediaStatusManager-cpp.patch
+++ b/src/dom/media/mediacontrol/MediaStatusManager-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/dom/media/mediacontrol/MediaStatusManager.cpp b/dom/media/mediacontrol/MediaStatusManager.cpp
-index c1282b8b1d99327df972c8f0aa848816fcbc4b2b..acaaff389838886267f96993a7f0d27950f08624 100644
+index 9348a0b69e4d389b92931d46ba6c1849d6883450..920a0b2ebc7ac3c4ecd0245903ccb1d8d4258820 100644
 --- a/dom/media/mediacontrol/MediaStatusManager.cpp
 +++ b/dom/media/mediacontrol/MediaStatusManager.cpp
-@@ -427,7 +427,8 @@ void MediaStatusManager::UpdateGuessedPositionState(
+@@ -431,7 +431,8 @@ void MediaStatusManager::UpdateGuessedPositionState(
      return;
    }
  
diff --git a/src/dom/media/mediaelement/HTMLMediaElement-cpp.patch b/src/dom/media/mediaelement/HTMLMediaElement-cpp.patch
index 201e8ea6c..8fd51cb02 100644
--- a/src/dom/media/mediaelement/HTMLMediaElement-cpp.patch
+++ b/src/dom/media/mediaelement/HTMLMediaElement-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/dom/media/mediaelement/HTMLMediaElement.cpp b/dom/media/mediaelement/HTMLMediaElement.cpp
-index 6ea902b7423bb105f23c0cd2092c40938174e4a3..9a1fe4b3fabc23022bb17ffa801d48cd1e6a5b60 100644
+index b4ab1622d0e58781929aa6801dfd374f42567a7a..358f3d3cac3381ab9de3af65616095f69b9c7b23 100644
 --- a/dom/media/mediaelement/HTMLMediaElement.cpp
 +++ b/dom/media/mediaelement/HTMLMediaElement.cpp
 @@ -450,6 +450,7 @@ class HTMLMediaElement::MediaControlKeyListener final
@@ -10,7 +10,7 @@ index 6ea902b7423bb105f23c0cd2092c40938174e4a3..9a1fe4b3fabc23022bb17ffa801d48cd
        NotifyAudibleStateChanged(mIsOwnerAudible
                                      ? MediaAudibleState::eAudible
                                      : MediaAudibleState::eInaudible);
-@@ -7442,6 +7443,9 @@ void HTMLMediaElement::FireTimeUpdate(TimeupdateType aType) {
+@@ -7450,6 +7451,9 @@ void HTMLMediaElement::FireTimeUpdate(TimeupdateType aType) {
      QueueTask(std::move(runner));
      mQueueTimeUpdateRunnerTime = TimeStamp::Now();
      mLastCurrentTime = CurrentTime();
diff --git a/src/eslint-file-globals-config-mjs.patch b/src/eslint-file-globals-config-mjs.patch
index 8754ddbe9..5eb4a2eda 100644
--- a/src/eslint-file-globals-config-mjs.patch
+++ b/src/eslint-file-globals-config-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/eslint-file-globals.config.mjs b/eslint-file-globals.config.mjs
-index c17a96adb86eff46c8dafc5cbef83eb10b5fbeeb..4d00012889a846fabfd9172fb05459318e4b4746 100644
+index bf1341a84382380d45b936aeffde3f167301a9ed..b6aa373252888dcdefd528a40329f1959086d8e5 100644
 --- a/eslint-file-globals.config.mjs
 +++ b/eslint-file-globals.config.mjs
 @@ -22,6 +22,7 @@
@@ -10,7 +10,7 @@ index c17a96adb86eff46c8dafc5cbef83eb10b5fbeeb..4d00012889a846fabfd9172fb0545931
  
  export default [
    {
-@@ -549,4 +550,9 @@ export default [
+@@ -550,4 +551,9 @@ export default [
      ],
      languageOptions: { globals: globals.worker },
    },
diff --git a/src/eslint-test-paths-config-mjs.patch b/src/eslint-test-paths-config-mjs.patch
index 9c26e3f16..2c86988e6 100644
--- a/src/eslint-test-paths-config-mjs.patch
+++ b/src/eslint-test-paths-config-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/eslint-test-paths.config.mjs b/eslint-test-paths.config.mjs
-index 7a87fec812ea8ddea5c10dca53af560e7dc6385b..2b943b031ebd30e06e2aa1043aed13c11bd10db1 100644
+index 0d3bd58e7fb9802223588a46fd83ae6b8e14837f..b8f91f6a6d52d58b47c7556650910f3ac0ec2842 100644
 --- a/eslint-test-paths.config.mjs
 +++ b/eslint-test-paths.config.mjs
-@@ -218,6 +218,7 @@ const extraBrowserTestPaths = [
+@@ -219,6 +219,7 @@ const extraBrowserTestPaths = [
    "toolkit/components/windowwatcher/test/",
    "toolkit/mozapps/extensions/test/xpinstall/",
    "uriloader/exthandler/tests/mochitest/",
diff --git a/src/external-patches/firefox/allow_backdrop_to_work_on_transparency.patch b/src/external-patches/firefox/allow_backdrop_to_work_on_transparency.patch
index 3829c41c2..20ebb535c 100644
--- a/src/external-patches/firefox/allow_backdrop_to_work_on_transparency.patch
+++ b/src/external-patches/firefox/allow_backdrop_to_work_on_transparency.patch
@@ -64,7 +64,7 @@ diff --git a/gfx/wr/webrender/src/device/gl.rs b/gfx/wr/webrender/src/device/gl.
 diff --git a/gfx/wr/webrender/src/renderer/init.rs b/gfx/wr/webrender/src/renderer/init.rs
 --- a/gfx/wr/webrender/src/renderer/init.rs
 +++ b/gfx/wr/webrender/src/renderer/init.rs
-@@ -204,10 +204,12 @@
+@@ -204,6 +204,8 @@
      pub low_quality_pinch_zoom: bool,
      pub max_shared_surface_size: i32,
      /// If true, open a debug socket to listen for remote debugger.
@@ -72,19 +72,14 @@ diff --git a/gfx/wr/webrender/src/renderer/init.rs b/gfx/wr/webrender/src/render
      pub enable_debugger: bool,
 +    /// See explanation of `gfx.webrender.opaque-backdrop-fallback`.
 +    pub opaque_backdrop_fallback: bool,
- 
-     /// Use the new quad primitive path for box-shadow blur rendering.
-     pub use_quad_box_shadow: bool,
  }
- 
-@@ -277,10 +279,11 @@
+@@ -277,9 +279,10 @@
              enable_instancing: true,
              reject_software_rasterizer: false,
              low_quality_pinch_zoom: false,
              max_shared_surface_size: 2048,
              enable_debugger: true,
 +            opaque_backdrop_fallback: false,
-             use_quad_box_shadow: true,
          }
      }
  }
diff --git a/src/external-patches/firefox/bug_2013682_allow_stacking_contexts_to_be_promoted.patch b/src/external-patches/firefox/bug_2013682_allow_stacking_contexts_to_be_promoted.patch
deleted file mode 100644
index adc2d5903..000000000
--- a/src/external-patches/firefox/bug_2013682_allow_stacking_contexts_to_be_promoted.patch
+++ /dev/null
@@ -1,104 +0,0 @@
-diff --git a/gfx/wr/webrender/src/clip.rs b/gfx/wr/webrender/src/clip.rs
---- a/gfx/wr/webrender/src/clip.rs
-+++ b/gfx/wr/webrender/src/clip.rs
-@@ -97,11 +97,11 @@
- use api::units::*;
- use crate::image_tiling::{self, Repetition};
- use crate::border::{ensure_no_corner_overlap, BorderRadiusAu};
- use crate::box_shadow::{BLUR_SAMPLE_SCALE, BoxShadowClipSource, BoxShadowCacheKey};
- use crate::renderer::GpuBufferBuilderF;
--use crate::spatial_tree::{SpatialTree, SpatialNodeIndex};
-+use crate::spatial_tree::{SceneSpatialTree, SpatialTree, SpatialNodeIndex};
- use crate::ellipse::Ellipse;
- use crate::gpu_types::{BoxShadowStretchMode};
- use crate::intern;
- use crate::internal_types::{FastHashMap, FastHashSet, LayoutPrimitiveInfo};
- use crate::prim_store::{VisibleMaskImageTile};
-@@ -745,10 +745,56 @@
-     ) -> bool {
-         let clip_chain_index = self.clip_chain_map[&clip_chain_id];
-         self.has_complex_clips_impl(clip_chain_index, interners)
-     }
- 
-+    /// Check if all complex clips in a clip chain are fixed-position rounded
-+    /// rectangles (in Clip mode). When true, the intermediate surface for a
-+    /// root-level stacking context can be skipped because the clips will be
-+    /// promoted to compositor clips on the tile cache slices.
-+    pub fn clip_chain_complex_clips_are_promotable(
-+        &self,
-+        clip_chain_id: ClipChainId,
-+        interners: &Interners,
-+        spatial_tree: &SceneSpatialTree,
-+    ) -> bool {
-+        let clip_chain_index = self.clip_chain_map[&clip_chain_id];
-+        self.complex_clips_are_promotable_impl(clip_chain_index, interners, spatial_tree)
-+    }
-+
-+    fn complex_clips_are_promotable_impl(
-+        &self,
-+        clip_chain_index: usize,
-+        interners: &Interners,
-+        spatial_tree: &SceneSpatialTree,
-+    ) -> bool {
-+        let mut index = clip_chain_index;
-+
-+        loop {
-+            let clip_chain = &self.clip_chains[index];
-+
-+            for clip_entry in &clip_chain.clips {
-+                let clip_info = &interners.clip[clip_entry.handle];
-+
-+                match clip_info.key.kind {
-+                    ClipItemKeyKind::Rectangle(_, ClipMode::Clip) => {}
-+                    ClipItemKeyKind::RoundedRectangle(_, _, ClipMode::Clip) => {
-+                        if !spatial_tree.is_root_coord_system(clip_entry.spatial_node_index) {
-+                            return false;
-+                        }
-+                    }
-+                    _ => return false,
-+                }
-+            }
-+
-+            match clip_chain.parent {
-+                Some(parent) => index = parent,
-+                None => return true,
-+            }
-+        }
-+    }
-+
-     /// Check if a clip-node has complex (non-rectangular) clips
-     pub fn clip_node_has_complex_clips(
-         &self,
-         clip_node_id: ClipNodeId,
-         interners: &Interners,
-diff --git a/gfx/wr/webrender/src/scene_building.rs b/gfx/wr/webrender/src/scene_building.rs
---- a/gfx/wr/webrender/src/scene_building.rs
-+++ b/gfx/wr/webrender/src/scene_building.rs
-@@ -2369,11 +2369,26 @@
- 
-         // If this stacking context has any complex clips, we need to draw it
-         // to an off-screen surface.
-         if let Some(clip_chain_id) = clip_chain_id {
-             if self.clip_tree_builder.clip_chain_has_complex_clips(clip_chain_id, &self.interners) {
--                blit_reason |= BlitReason::CLIP;
-+                // At the root level, if all complex clips are fixed-position
-+                // rounded rectangles, we can skip the intermediate surface.
-+                // The clips will be promoted to compositor clips on the tile
-+                // cache slices, which applies them once to the composited
-+                // surface — equivalent to the intermediate surface approach.
-+                // This allows tile cache barriers to fire normally, enabling
-+                // proper picture caching with multiple slices.
-+                if !self.sc_stack.is_empty() ||
-+                   !self.clip_tree_builder.clip_chain_complex_clips_are_promotable(
-+                       clip_chain_id,
-+                       &self.interners,
-+                       &self.spatial_tree,
-+                   )
-+                {
-+                    blit_reason |= BlitReason::CLIP;
-+                }
-             }
-         }
- 
-         // Check if we know this stacking context is redundant (doesn't need a surface)
-         // The check for blend-container redundancy is more involved so it's handled below.
diff --git a/src/external-patches/firefox/native_macos_popovers/D284084.patch b/src/external-patches/firefox/native_macos_popovers/D284084.patch
deleted file mode 100644
index 59e6e31fb..000000000
--- a/src/external-patches/firefox/native_macos_popovers/D284084.patch
+++ /dev/null
@@ -1,669 +0,0 @@
-diff --git a/browser/base/content/main-popupset.inc.xhtml b/browser/base/content/main-popupset.inc.xhtml
---- a/browser/base/content/main-popupset.inc.xhtml
-+++ b/browser/base/content/main-popupset.inc.xhtml
-@@ -192,10 +192,11 @@
-   <!-- Starting point for selection actions -->
-   <panel class="panel-no-padding"
-          id="selection-shortcut-action-panel"
-          noautofocus="true"
-          consumeoutsideclicks="never"
-+         nonnativepopover="true"
-          type="arrow">
-     <hbox class="panel-subview-body">
-       <html:moz-button id="ai-action-button"/>
-     </hbox>
-   </panel>
-@@ -203,10 +204,11 @@
- 
-   <!-- Shortcut options for Gen AI action -->
-   <panel class="panel-no-padding"
-          id="chat-shortcuts-options-panel"
-          noautofocus="true"
-+         nonnativepopover="true"
-          type="arrow">
-     <vbox class="panel-subview-body"/>
-   </panel>
- 
-   <html:template id="screenshotsPagePanelTemplate">
-@@ -610,10 +612,11 @@
-          type="arrow"
-          orient="vertical"
-          noautofocus="true"
-          norolluponanchor="true"
-          consumeoutsideclicks="false"
-+         nonnativepopover="true"
-          role="tooltip">
-     <html:div class="tab-preview-content-interactive"></html:div>
-     <html:div class="tab-preview-content-main">
-       <html:div class="tab-preview-thumbnail-container"></html:div>
-       <html:div class="tab-preview-text-container">
-diff --git a/browser/components/asrouter/modules/FeatureCallout.sys.mjs b/browser/components/asrouter/modules/FeatureCallout.sys.mjs
---- a/browser/components/asrouter/modules/FeatureCallout.sys.mjs
-+++ b/browser/components/asrouter/modules/FeatureCallout.sys.mjs
-@@ -1054,10 +1054,11 @@
-             noautofocus="true"
-             flip="slide"
-             type="arrow"
-             consumeoutsideclicks="never"
-             norolluponanchor="true"
-+ 
-             position="${panel_position.panel_position_string}"
-             ${hide_arrow ? "" : 'show-arrow=""'}
-             ${autohide ? "" : 'noautohide="true"'}
-             ${ignorekeys ? 'ignorekeys="true"' : ""}
-             ${no_open_on_anchor ? 'no-open-on-anchor=""' : ""}
-diff --git a/browser/components/customizableui/content/panelUI.inc.xhtml b/browser/components/customizableui/content/panelUI.inc.xhtml
---- a/browser/components/customizableui/content/panelUI.inc.xhtml
-+++ b/browser/components/customizableui/content/panelUI.inc.xhtml
-@@ -276,10 +276,11 @@
-        role="group"
-        type="arrow"
-        hidden="true"
-        flip="slide"
-        position="bottomright topright"
-+       hidepopovertail="true"
-        noautofocus="true">
-   <panelmultiview id="appMenu-multiView" mainViewId="appMenu-mainView"
-                   viewCacheId="appMenu-viewCache">
-   </panelmultiview>
- </panel>
-diff --git a/dom/xul/XULPopupElement.cpp b/dom/xul/XULPopupElement.cpp
---- a/dom/xul/XULPopupElement.cpp
-+++ b/dom/xul/XULPopupElement.cpp
-@@ -80,10 +80,14 @@
- }
- 
- void XULPopupElement::OpenPopupAtScreen(int32_t aXPos, int32_t aYPos,
-                                         bool aIsContextMenu,
-                                         Event* aTriggerEvent) {
-+  // TODO(cheff): At nsCocoaWindow::Show but we check for ShouldShowAsNSPopover
-+  //   to determine whether to use a native popover or not. This should sort of
-+  //   "replicate" that logic here, but it's a bit of a hacky way.
-+  SetAttr(kNameSpaceID_None, nsGkAtoms::nonnativepopover, u"true"_ns, true);
-   nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
-   if (pm) {
-     pm->ShowPopupAtScreen(this, aXPos, aYPos, aIsContextMenu, aTriggerEvent);
-   }
- }
-@@ -93,10 +97,14 @@
-                                             int32_t aWidth, int32_t aHeight,
-                                             bool aIsContextMenu,
-                                             bool aAttributesOverride,
-                                             Event* aTriggerEvent) {
-   nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
-+  // TODO: See OpenPopupAtScreen. We should remove this and use the other
-+  // implementation because this is a bit of a hacky way to determine whether to
-+  // use a native popover or not.
-+  SetAttr(kNameSpaceID_None, nsGkAtoms::nonnativepopover, u"true"_ns, true);
-   if (pm) {
-     pm->ShowPopupAtScreenRect(
-         this, aPosition, nsIntRect(aXPos, aYPos, aWidth, aHeight),
-         aIsContextMenu, aAttributesOverride, aTriggerEvent);
-   }
-diff --git a/layout/xul/nsMenuPopupFrame.h b/layout/xul/nsMenuPopupFrame.h
---- a/layout/xul/nsMenuPopupFrame.h
-+++ b/layout/xul/nsMenuPopupFrame.h
-@@ -528,18 +528,10 @@
- 
-   // Move the popup to the position specified in its |left| and |top|
-   // attributes.
-   void MoveToAttributePosition();
- 
--  // Returns true if the popup should try to remain at the same relative
--  // location as the anchor while it is open. If the anchor becomes hidden
--  // either directly or indirectly because a parent popup or other element
--  // is no longer visible, or a parent deck page is changed, the popup hides
--  // as well. The second variation also sets the anchor rectangle, relative to
--  // the popup frame.
--  bool ShouldFollowAnchor() const;
--
-   nsIFrame* GetAnchorFrame() const;
- 
-  public:
-   /**
-    * Return whether the popup direction should be RTL.
-@@ -548,10 +540,18 @@
-    *
-    * Return whether the popup direction should be RTL.
-    */
-   bool IsDirectionRTL() const;
- 
-+  // Returns true if the popup should try to remain at the same relative
-+  // location as the anchor while it is open. If the anchor becomes hidden
-+  // either directly or indirectly because a parent popup or other element
-+  // is no longer visible, or a parent deck page is changed, the popup hides
-+  // as well. The second variation also sets the anchor rectangle, relative to
-+  // the popup frame.
-+  bool ShouldFollowAnchor() const;
-+
-   bool ShouldFollowAnchor(nsRect& aRect);
- 
-   // Returns parent menu widget for submenus that are in the same
-   // frame hierarchy, it's needed for Linux/Wayland which demands
-   // strict popup windows hierarchy.
-diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
---- a/modules/libpref/init/StaticPrefList.yaml
-+++ b/modules/libpref/init/StaticPrefList.yaml
-@@ -19672,10 +19672,19 @@
-   value: true
-   mirror: always
- 
- #ifdef XP_MACOSX
- 
-+# If true, use native NSPopover for arrow panel popups (type="arrow") on macOS
-+# Someone like Zen browser will use this pref by default, so
-+# please take this into account when you change the behavior of
-+# native popover. Note: Only panels with type="arrow" will use NSPopover.
-+- name: widget.macos.native-popovers
-+  type: RelaxedAtomicBool
-+  value: false
-+  mirror: always
-+
- # Whether to shift by the menubar height on fullscreen mode.
- # 0: never
- # 1: always
- # 2: auto (tries to detect when it is needed)
- - name: widget.macos.shift-by-menubar-on-fullscreen
-diff --git a/toolkit/themes/shared/global-shared.css b/toolkit/themes/shared/global-shared.css
---- a/toolkit/themes/shared/global-shared.css
-+++ b/toolkit/themes/shared/global-shared.css
-@@ -72,10 +72,22 @@
-   --menuitem-border-radius: var(--panel-menuitem-border-radius);
-   --menuitem-padding: var(--panel-menuitem-padding);
-   --menuitem-margin: var(--panel-menuitem-margin);
- }
- 
-+/* stylelint-disable-next-line media-query-no-invalid */
-+@media -moz-pref("widget.macos.native-popovers") and (-moz-platform: macos) {
-+  panel:not(:where([nonnativepopover="true"])) {
-+    background-color: transparent;
-+    --panel-background: transparent;
-+    --panel-shadow: none;
-+    --panel-border-color: transparent;
-+    --panel-shadow-margin: 0px;
-+ 
-+  }
-+}
-+
- /* Lightweight theme roots */
- 
- :root[lwtheme] {
-   body,
-   toolbar,
-diff --git a/widget/cocoa/nsCocoaWindow.h b/widget/cocoa/nsCocoaWindow.h
---- a/widget/cocoa/nsCocoaWindow.h
-+++ b/widget/cocoa/nsCocoaWindow.h
-@@ -132,23 +132,38 @@
- // to create its "frame view".
- + (Class)frameViewClassForStyleMask:(NSUInteger)styleMask;
- 
- @end
- 
--@interface PopupWindow : BaseWindow {
-+@interface PopupWindow : BaseWindow <NSPopoverDelegate> {
-  @private
-   BOOL mIsContextMenu;
-+
-+  // NSPopover support for native appearance
-+  NSPopover* mPopover;
-+  NSViewController* mPopoverViewController;
-+  BOOL mUsePopover;
- }
- 
- - (id)initWithContentRect:(NSRect)contentRect
-                 styleMask:(NSUInteger)styleMask
-                   backing:(NSBackingStoreType)bufferingType
-                     defer:(BOOL)deferCreation;
- - (BOOL)isContextMenu;
- - (void)setIsContextMenu:(BOOL)flag;
- - (BOOL)canBecomeMainWindow;
- 
-+// NSPopover support
-+- (void)setAllowPopover;
-+- (BOOL)usePopover;
-+- (void)showPopoverRelativeToRect:(NSRect)positioningRect
-+                           ofView:(NSView*)positioningView
-+                    preferredEdge:(NSRectEdge)preferredEdge
-+                     hiddenAnchor:(BOOL)hiddenAnchor;
-+- (void)closePopover;
-+- (void)updatePopoverContent;
-+
- @end
- 
- @interface BorderlessWindow : BaseWindow {
- }
- 
-@@ -200,10 +215,14 @@
-   typedef nsIWidget Inherited;
- 
-  public:
-   nsCocoaWindow();
- 
-+  // Check if this window should use NSPopover for popup/menu display
-+  bool ShouldUseNSPopover() const;
-+  bool ShouldShowAsNSPopover() const override;
-+
-   [[nodiscard]] nsresult Create(nsIWidget* aParent, const DesktopIntRect& aRect,
-                                 const InitData&) override;
- 
-   [[nodiscard]] nsresult Create(nsIWidget* aParent,
-                                 const LayoutDeviceIntRect& aRect,
-diff --git a/widget/cocoa/nsCocoaWindow.mm b/widget/cocoa/nsCocoaWindow.mm
---- a/widget/cocoa/nsCocoaWindow.mm
-+++ b/widget/cocoa/nsCocoaWindow.mm
-@@ -4,10 +4,13 @@
-  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
- 
- #include "nsCocoaWindow.h"
- 
- #include "nsArrayUtils.h"
-+#include "nsMenuPopupFrame.h"
-+#include "nsDeviceContext.h"
-+#include "mozilla/dom/XULPopupElement.h"
- #include "MOZDynamicCursor.h"
- #include "nsIAppStartup.h"
- #include "nsIDOMWindowUtils.h"
- #include "nsILocalFileMac.h"
- #include "CocoaCompositorWidget.h"
-@@ -5031,10 +5034,15 @@
-   if (mWindowType == WindowType::Popup) {
-     SetPopupWindowLevel();
-     mWindow.backgroundColor = NSColor.clearColor;
-     mWindow.opaque = NO;
- 
-+    // Enable NSPopover for panel popup types when preference is enabled
-+    if ([mWindow isKindOfClass:[PopupWindow class]] && ShouldUseNSPopover()) {
-+      [(PopupWindow*)mWindow setAllowPopover];
-+    }
-+
-     // When multiple spaces are in use and the browser is assigned to a
-     // particular space, override the "Assign To" space and display popups on
-     // the active space. Does not work with multiple displays. See
-     // NeedsRecreateToReshow() for multi-display with multi-space workaround.
-     mWindow.collectionBehavior = mWindow.collectionBehavior |
-@@ -5236,10 +5244,57 @@
-   NS_OBJC_END_TRY_IGNORE_BLOCK;
- }
- 
- bool nsCocoaWindow::IsRunningAppModal() { return [NSApp _isRunningAppModal]; }
- 
-+static NSRectEdge AlignmentPositionToNSRectEdge(int8_t aPosition) {
-+  switch (aPosition) {
-+    case POPUPPOSITION_BEFORESTART:
-+    case POPUPPOSITION_BEFOREEND:
-+      return NSRectEdgeMaxY;
-+    case POPUPPOSITION_AFTERSTART:
-+    case POPUPPOSITION_AFTEREND:
-+      return NSRectEdgeMinY;
-+    case POPUPPOSITION_STARTBEFORE:
-+    case POPUPPOSITION_STARTAFTER:
-+      return NSRectEdgeMaxX;
-+    case POPUPPOSITION_ENDBEFORE:
-+    case POPUPPOSITION_ENDAFTER:
-+      return NSRectEdgeMinX;
-+    default:
-+      return NSRectEdgeMinY;
-+  }
-+}
-+
-+static void SyncPopoverBounds(NSPopover* aPopover,
-+                              nsMenuPopupFrame* aPopupFrame) {
-+  if (!aPopover || !aPopover.shown || !aPopupFrame) {
-+    return;
-+  }
-+  NSWindow* popoverWindow = aPopover.contentViewController.view.window;
-+  if (!popoverWindow) {
-+    return;
-+  }
-+
-+  // Synchronize the popup frame's internal bounds with the actual bounds that
-+  // macOS calculated for the popover.
-+  NSView* contentView = popoverWindow.contentView;
-+  NSRect contentFrame = [contentView convertRect:contentView.bounds toView:nil];
-+  NSRect windowFrame = [popoverWindow convertRectToScreen:contentFrame];
-+
-+  CGFloat backingScale = popoverWindow.backingScaleFactor;
-+  mozilla::LayoutDeviceIntRect devPixRect =
-+      nsCocoaUtils::CocoaRectToGeckoRectDevPix(windowFrame, backingScale);
-+
-+  nsPresContext* presContext = aPopupFrame->PresContext();
-+  mozilla::CSSIntPoint cssPos =
-+      presContext->DevPixelsToIntCSSPixels(devPixRect.TopLeft());
-+
-+  aPopupFrame->MoveTo(mozilla::CSSPoint(cssPos.x, cssPos.y),
-+                      /* aUpdateAttrs */ false);
-+}
-+
- // Hide or show this window
- void nsCocoaWindow::Show(bool aState) {
-   NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
- 
-   if (!mWindow) {
-@@ -5300,10 +5355,58 @@
-       mWindow.contentView.needsDisplay = YES;
-       if (!nativeParentWindow || mPopupLevel != PopupLevel::Parent) {
-         [mWindow orderFront:nil];
-       }
-       NS_OBJC_END_TRY_IGNORE_BLOCK;
-+      if (ShouldShowAsNSPopover() && nativeParentWindow) {
-+        nsMenuPopupFrame* popupFrame = GetPopupFrame();
-+        NSRectEdge preferredEdge =
-+            AlignmentPositionToNSRectEdge(popupFrame->GetAlignmentPosition());
-+        nsRect anchorRectAppUnits = popupFrame->GetUntransformedAnchorRect();
-+        nsPresContext* pc = popupFrame->PresContext();
-+        int32_t appUnitsPerDevPixel = pc->AppUnitsPerDevPixel();
-+        mozilla::DesktopToLayoutDeviceScale desktopToLayoutScale =
-+            pc->DeviceContext()->GetDesktopToDeviceScale();
-+        mozilla::DesktopIntRect popupAnchorRectScaled =
-+            mozilla::DesktopIntRect::RoundOut(
-+                mozilla::LayoutDeviceRect::FromAppUnits(anchorRectAppUnits,
-+                                                        appUnitsPerDevPixel) /
-+                desktopToLayoutScale);
-+        // Taking the now correctly scaled anchor rect and turning it into a
-+        // gecko rect this accounts for the y-axis inversion that cocoa needs,
-+        // as the origin is in the bottom left. This rect is in screen space
-+        NSRect cocoaScreenRect =
-+            nsCocoaUtils::GeckoRectToCocoaRect(popupAnchorRectScaled);
-+        // We take the screen space rect and convert it to window space
-+        // coordinates, as NSPopover requires the coordinates to be in view
-+        // space and inside the view. If the coordinates are outside our view,
-+        // the popover will fail silently
-+        NSRect windowRect =
-+            [nativeParentWindow convertRectFromScreen:cocoaScreenRect];
-+        NSView* parentView = [nativeParentWindow contentView];
-+        // We take the window space rect and convert it to view space for the
-+        // specific parent view
-+        NSRect positioningRect = [parentView convertRect:windowRect
-+                                                fromView:nil];
-+        BOOL shouldHideAnchor = NO;
-+        auto& element = popupFrame->PopupElement();
-+        if (element.GetBoolAttr(nsGkAtoms::hidepopovertail)) {
-+          shouldHideAnchor = YES;
-+        }
-+        [(PopupWindow*)mWindow showPopoverRelativeToRect:positioningRect
-+                                                  ofView:parentView
-+                                           preferredEdge:preferredEdge
-+                                            hiddenAnchor:shouldHideAnchor];
-+        SyncPopoverBounds([(PopupWindow*)mWindow popover], popupFrame);
-+
-+
-+
-+
-+        // Exit early here since the popover is now shown.
-+
-+        return;
-+      }
-       // If our popup window is a non-native context menu, tell the OS (and
-       // other programs) that a menu has opened.  This is how the OS knows to
-       // close other programs' context menus when ours open.
-       if ([mWindow isKindOfClass:[PopupWindow class]] &&
-           [(PopupWindow*)mWindow isContextMenu]) {
-@@ -5373,11 +5476,15 @@
-     // unhook it here before ordering it out. When you order out the child
-     // of a window it hides the parent window.
-     if (mWindowType == WindowType::Popup && nativeParentWindow) {
-       [nativeParentWindow removeChildWindow:mWindow];
-     }
--
-+    // Handle NSPopover hiding or traditional window hiding
-+    if ([mWindow isKindOfClass:[PopupWindow class]] &&
-+        [(PopupWindow*)mWindow usePopover]) {
-+      [(PopupWindow*)mWindow closePopover];
-+    }
-     [mWindow orderOut:nil];
-     // If our popup window is a non-native context menu, tell the OS (and
-     // other programs) that a menu has closed.
-     if ([mWindow isKindOfClass:[PopupWindow class]] &&
-         [(PopupWindow*)mWindow isContextMenu]) {
-@@ -5424,10 +5531,28 @@
-     return false;
-   }
-   return nsIWidget::ShouldUseOffMainThreadCompositing();
- }
- 
-+bool nsCocoaWindow::ShouldUseNSPopover() const {
-+  // Use NSPopover for panel popups when the preference is enabled
-+  // But not for detached popups - they should use traditional window logic
-+  return (mWindowType == WindowType::Popup && mPopupType == PopupType::Panel &&
-+          mozilla::StaticPrefs::widget_macos_native_popovers());
-+}
-+
-+bool nsCocoaWindow::ShouldShowAsNSPopover() const {
-+  if (!ShouldUseNSPopover()) {
-+    return false;
-+  }
-+  nsMenuPopupFrame* popupFrame = GetPopupFrame();
-+  return [mWindow isKindOfClass:[PopupWindow class]] &&
-+         [(PopupWindow*)mWindow usePopover] && popupFrame &&
-+         popupFrame->ShouldFollowAnchor() &&
-+         !popupFrame->PopupElement().GetBoolAttr(nsGkAtoms::nonnativepopover);
-+}
-+
- TransparencyMode nsCocoaWindow::GetTransparencyMode() {
-   NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
- 
-   return mWindow.isOpaque ? TransparencyMode::Opaque
-                           : TransparencyMode::Transparent;
-@@ -6378,10 +6503,19 @@
- 
-   // We ignore aRepaint -- we have to call display:YES, otherwise the
-   // title bar doesn't immediately get repainted and is displayed in
-   // the wrong place, leading to a visual jump.
-   [mWindow setFrame:newFrame display:YES];
-+  if (ShouldUseNSPopover() && [(PopupWindow*)mWindow usePopover]) {
-+    [(PopupWindow*)mWindow updatePopoverContent];
-+    // A popover won't resize by setting the frame
-+    // as it's size is calculated based on the content size
-+    // Therefor the content size has to be changed as well
-+    NSSize contentSize = NSMakeSize(aWidth, aHeight);
-+    [[(PopupWindow*)mWindow popover] setContentSize:contentSize];
-+    SyncPopoverBounds([(PopupWindow*)mWindow popover], GetPopupFrame());
-+  }
- 
-   NS_OBJC_END_TRY_IGNORE_BLOCK;
- }
- 
- void nsCocoaWindow::Resize(const DesktopRect& aRect, bool aRepaint) {
-@@ -8393,18 +8527,31 @@
-                             backing:bufferingType
-                               defer:deferCreation];
-   if (!self) {
-     return nil;
-   }
--
-+  mPopover = nil;
-+  mPopoverViewController = nil;
-+  mUsePopover = NO;
-   mIsContextMenu = false;
- 
-   return self;
- 
-   NS_OBJC_END_TRY_BLOCK_RETURN(nil);
- }
- 
-+- (void)dealloc {
-+  if (mPopover) {
-+    ChildViewMouseTracker::OnDestroyWindow(
-+        mPopover.contentViewController.view.window);
-+  }
-+
-+  [mPopover release];
-+  [mPopoverViewController release];
-+  [super dealloc];
-+}
-+
- // Override the private API _backdropBleedAmount. This determines how much the
- // desktop wallpaper contributes to the vibrancy backdrop.
- // Return 0 in order to match what the system does for sheet windows and
- // _NSPopoverWindows.
- - (CGFloat)_backdropBleedAmount {
-@@ -8460,10 +8607,122 @@
- 
- - (void)setIsContextMenu:(BOOL)flag {
-   mIsContextMenu = flag;
- }
- 
-+- (void)setAllowPopover {
-+  mUsePopover = YES;
-+
-+  if (!mPopover) {
-+    mPopover = [[NSPopover alloc] init];
-+
-+    // Use NSPopoverBehaviorApplicationDefined to prevent auto-closing
-+    // when other popovers are opened, and to respect the disable_autohide
-+    // preference
-+    mPopover.behavior = NSPopoverBehaviorApplicationDefined;
-+    mPopover.delegate = self;
-+
-+    // Create view controller that will contain our content view
-+    mPopoverViewController = [[NSViewController alloc] init];
-+
-+    NSView* contentView = self.contentView;
-+    if (contentView) {
-+      // Ensure the content view is properly configured
-+      [contentView
-+          setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
-+
-+      mPopoverViewController.view = contentView;
-+      mPopover.contentViewController = mPopoverViewController;
-+
-+      // Set popover size to match our window content size
-+      NSRect contentRect = [contentView frame];
-+      if (contentRect.size.width > 0 && contentRect.size.height > 0) {
-+        [mPopover setContentSize:contentRect.size];
-+      }
-+    }
-+  }
-+}
-+
-+- (BOOL)usePopover {
-+  return mUsePopover && !mIsContextMenu;
-+}
-+
-+- (void)showPopoverRelativeToRect:(NSRect)positioningRect
-+                           ofView:(NSView*)positioningView
-+                    preferredEdge:(NSRectEdge)preferredEdge
-+                     hiddenAnchor:(BOOL)hiddenAnchor {
-+  NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
-+  if (!mPopover) {
-+    return;
-+  }
-+
-+  // Close existing popover if it's already shown
-+  if (mPopover.shown) {
-+    [mPopover close];
-+  }
-+
-+  // Force content update before showing
-+  [self updatePopoverContent];
-+
-+  if (mPopoverViewController.view) {
-+    mPopover.behavior = NSPopoverBehaviorApplicationDefined;
-+
-+    // This is a hidden API that prevents the popover from showing its arrow
-+    // pointing to the anchor.
-+    [mPopover setShouldHideAnchor:hiddenAnchor];
-+
-+    [mPopover showRelativeToRect:positioningRect
-+                          ofView:positioningView
-+                   preferredEdge:preferredEdge];
-+  }
-+
-+  NSWindow* popoverWindow = mPopover.contentViewController.view.window;
-+  [popoverWindow setAcceptsMouseMovedEvents:YES];
-+
-+  NS_OBJC_END_TRY_IGNORE_BLOCK;
-+}
-+
-+- (void)closePopover {
-+  NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
-+
-+  if (mPopover && mPopover.shown) {
-+    [mPopover close];
-+  }
-+
-+  NS_OBJC_END_TRY_IGNORE_BLOCK;
-+}
-+
-+- (void)updatePopoverContent {
-+  NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
-+  if (!mPopover || !mPopoverViewController) {
-+    return;
-+  }
-+
-+  NSView* contentView = self.contentView;
-+  if (!contentView) {
-+    return;
-+  }
-+  // Ensure proper hit testing for hover events
-+  [contentView setWantsLayer:YES];
-+  [contentView setAcceptsTouchEvents:YES];
-+
-+  // Update the popover content view to match current window content
-+  mPopoverViewController.view = contentView;
-+
-+  // Update popover size to match content
-+  NSRect contentRect = [contentView frame];
-+  if (contentRect.size.width > 0 && contentRect.size.height > 0) {
-+    mPopover.contentSize = contentRect.size;
-+  }
-+
-+  NS_OBJC_END_TRY_IGNORE_BLOCK;
-+}
-+
-+- (NSPopover*)popover {
-+  return mPopover;
-+}
-+
- - (BOOL)canBecomeMainWindow {
-   // This is overridden because the default is 'yes' when a titlebar is present.
-   return NO;
- }
- 
-diff --git a/widget/nsIWidget.h b/widget/nsIWidget.h
---- a/widget/nsIWidget.h
-+++ b/widget/nsIWidget.h
-@@ -829,10 +829,15 @@
-   virtual void SuppressAnimation(bool aSuppress) {}
- 
-   /** Sets windows-specific mica backdrop on this widget. */
-   virtual void SetMicaBackdrop(bool) {}
- 
-+  /**
-+   * Determine whether this widget should be shown as an NSPopover.
-+   */
-+  virtual bool ShouldShowAsNSPopover() const { return false; }
-+
-   /**
-    * Return size mode (minimized, maximized, normalized).
-    * Returns a value from nsSizeMode (see nsIWidgetListener.h)
-    */
-   virtual nsSizeMode SizeMode() = 0;
-diff --git a/xpcom/ds/StaticAtoms.py b/xpcom/ds/StaticAtoms.py
---- a/xpcom/ds/StaticAtoms.py
-+++ b/xpcom/ds/StaticAtoms.py
-@@ -536,10 +536,11 @@
-     Atom("hgroup", "hgroup"),
-     Atom("hidden", "hidden"),
-     Atom("hidechrome", "hidechrome"),
-     Atom("hidecolumnpicker", "hidecolumnpicker"),
-     Atom("hidetitlebarseparator", "hidetitlebarseparator"),
-+    Atom("hidepopovertail", "hidepopovertail"),
-     Atom("hide_popover", "hide-popover"),
-     Atom("high", "high"),
-     Atom("highest", "highest"),
-     Atom("horizontal", "horizontal"),
-     Atom("hover", "hover"),
-@@ -759,10 +760,11 @@
-     Atom("nohref", "nohref"),
-     Atom("noinitialselection", "noinitialselection"),
-     Atom("nomodule", "nomodule"),
-     Atom("nonce", "nonce"),
-     Atom("none", "none"),
-+    Atom("nonnativepopover", "nonnativepopover"),
-     Atom("noresize", "noresize"),
-     Atom("normal", "normal"),
-     Atom("normalizeSpace", "normalize-space"),
-     Atom("noscript", "noscript"),
-     Atom("noshade", "noshade"),
-
diff --git a/src/external-patches/firefox/native_macos_popovers/D299584.patch b/src/external-patches/firefox/native_macos_popovers_fix.patch
similarity index 78%
rename from src/external-patches/firefox/native_macos_popovers/D299584.patch
rename to src/external-patches/firefox/native_macos_popovers_fix.patch
index a729c092c..d1aad1fa1 100644
--- a/src/external-patches/firefox/native_macos_popovers/D299584.patch
+++ b/src/external-patches/firefox/native_macos_popovers_fix.patch
@@ -1,3 +1,18 @@
+diff --git a/toolkit/themes/shared/global-shared.css b/toolkit/themes/shared/global-shared.css
+--- a/toolkit/themes/shared/global-shared.css
++++ b/toolkit/themes/shared/global-shared.css
+@@ -80,11 +80,10 @@
+     background-color: transparent;
+     --panel-background: transparent;
+     --panel-box-shadow: none;
+     --panel-border-color: transparent;
+     --panel-box-shadow-margin: 0px;
+-    --panel-padding: 0px;
+   }
+ }
+ 
+ /* Lightweight theme roots */
+ 
 diff --git a/widget/cocoa/nsCocoaWindow.h b/widget/cocoa/nsCocoaWindow.h
 --- a/widget/cocoa/nsCocoaWindow.h
 +++ b/widget/cocoa/nsCocoaWindow.h
@@ -23,7 +38,7 @@ diff --git a/widget/cocoa/nsCocoaWindow.mm b/widget/cocoa/nsCocoaWindow.mm
    return [mWindow isKindOfClass:[PopupWindow class]] &&
           [(PopupWindow*)mWindow usePopover] && popupFrame &&
 -         popupFrame->ShouldFollowAnchor() &&
-          !popupFrame->PopupElement().GetBoolAttr(nsGkAtoms::nonnativepopover);
+          !popupFrame->PopupElement().GetBoolAttr(nsGkAtoms::nonnative);
  }
  
  TransparencyMode nsCocoaWindow::GetTransparencyMode() {
diff --git a/src/external-patches/firefox/session_store_use_size_hint/D247215.patch b/src/external-patches/firefox/session_store_use_size_hint/D247215.patch
deleted file mode 100644
index 296671395..000000000
--- a/src/external-patches/firefox/session_store_use_size_hint/D247215.patch
+++ /dev/null
@@ -1,251 +0,0 @@
-diff --git a/dom/chrome-webidl/IOUtils.webidl b/dom/chrome-webidl/IOUtils.webidl
---- a/dom/chrome-webidl/IOUtils.webidl
-+++ b/dom/chrome-webidl/IOUtils.webidl
-@@ -93,23 +93,23 @@
-    *         otherwise rejects with a DOMException.
-    */
-   [NewObject]
-   Promise<unsigned long long> writeUTF8(DOMString path, UTF8String string, optional WriteOptions options = {});
-   /**
--   * Attempts to serialize |value| into a JSON string and encode it as into a
--   * UTF-8 string, then safely write the result to a file at |path|. Works
--   * exactly like |write|.
-+   * Attempts to serialize |value| into a JSON string and encode it as a UTF-8
-+   * string, then safely write the result to a file at |path|. Works exactly
-+   * like |write|.
-    *
-    * @param path      An absolute file path
-    * @param value     The value to be serialized.
-    * @param options   Options for writing the file. The "append" mode is not supported.
-    *
-    * @return Resolves with the number of bytes successfully written to the file,
-    *         otherwise rejects with a DOMException.
-    */
-   [NewObject]
--  Promise<unsigned long long> writeJSON(DOMString path, any value, optional WriteOptions options = {});
-+  Promise<WriteJSONResult> writeJSON(DOMString path, any value, optional WriteJSONOptions options = {});
-   /**
-    * Moves the file from |sourcePath| to |destPath|, creating necessary parents.
-    * If |destPath| is a directory, then the source file will be moved into the
-    * destination directory.
-    *
-@@ -566,10 +566,39 @@
-    * If true, compress the data with LZ4-encoding before writing to the file.
-    */
-   boolean compress = false;
- };
- 
-+/**
-+ * Options to be passed to the |IOUtils.writeJSON| method.
-+ */
-+dictionary WriteJSONOptions: WriteOptions {
-+  /**
-+   * An optional length hint that will be used to pre-allocate the buffer that
-+   * will hold the stringified JSON.
-+   *
-+   * This is the *length* and not the size (i.e., it is the number of UTF-16
-+   * codepoints and not the number of bytes).
-+   */
-+  unsigned long long lengthHint = 0;
-+};
-+
-+/**
-+ * Information about a WriteJSON operation.
-+ */
-+dictionary WriteJSONResult {
-+  /**
-+   * The number of bytes written.
-+   */
-+  required unsigned long long size;
-+
-+  /**
-+   * The length of the stringified JSON (in UTF-16 codepoints).
-+   */
-+  required unsigned long long jsonLength;
-+};
-+
- /**
-  * Options to be passed to the |IOUtils.move| method.
-  */
- dictionary MoveOptions {
-   /**
-diff --git a/xpcom/ioutils/IOUtils.h b/xpcom/ioutils/IOUtils.h
---- a/xpcom/ioutils/IOUtils.h
-+++ b/xpcom/ioutils/IOUtils.h
-@@ -92,11 +92,11 @@
-       const nsACString& aString, const dom::WriteOptions& aOptions,
-       ErrorResult& aError);
- 
-   static already_AddRefed<dom::Promise> WriteJSON(
-       dom::GlobalObject& aGlobal, const nsAString& aPath,
--      JS::Handle<JS::Value> aValue, const dom::WriteOptions& aOptions,
-+      JS::Handle<JS::Value> aValue, const dom::WriteJSONOptions& aOptions,
-       ErrorResult& aError);
- 
-   static already_AddRefed<dom::Promise> Move(dom::GlobalObject& aGlobal,
-                                              const nsAString& aSourcePath,
-                                              const nsAString& aDestPath,
-@@ -734,13 +734,16 @@
-   RefPtr<nsIFile> mBackupFile;
-   RefPtr<nsIFile> mTmpFile;
-   dom::WriteMode mMode;
-   bool mFlush = false;
-   bool mCompress = false;
-+  size_t mLengthHint = 0;
- 
-   static Result<InternalWriteOpts, IOUtils::IOError> FromBinding(
-       const dom::WriteOptions& aOptions);
-+  static Result<InternalWriteOpts, IOUtils::IOError> FromBinding(
-+      const dom::WriteJSONOptions& aOptions);
- };
- 
- /**
-  * Re-implements the file compression and decompression utilities found
-  * in toolkit/components/lz4/lz4.js
-diff --git a/xpcom/ioutils/IOUtils.cpp b/xpcom/ioutils/IOUtils.cpp
---- a/xpcom/ioutils/IOUtils.cpp
-+++ b/xpcom/ioutils/IOUtils.cpp
-@@ -587,15 +587,21 @@
-               return WriteSync(file, AsBytes(Span(str)), opts);
-             });
-       });
- }
- 
-+static bool AppendJSON(const char16_t* aBuf, uint32_t aLen, void* aStr) {
-+  nsAString* str = static_cast<nsAString*>(aStr);
-+
-+  return str->Append(aBuf, aLen, fallible);
-+}
-+
- /* static */
- already_AddRefed<Promise> IOUtils::WriteJSON(GlobalObject& aGlobal,
-                                              const nsAString& aPath,
-                                              JS::Handle<JS::Value> aValue,
--                                             const WriteOptions& aOptions,
-+                                             const WriteJSONOptions& aOptions,
-                                              ErrorResult& aError) {
-   return WithPromiseAndState(
-       aGlobal, aError, [&](Promise* promise, auto& state) {
-         nsCOMPtr<nsIFile> file = new nsLocalFile();
-         REJECT_IF_INIT_PATH_FAILED(file, aPath, promise,
-@@ -621,14 +627,15 @@
-                               file->HumanReadablePath().get()));
-           return;
-         }
- 
-         JSContext* cx = aGlobal.Context();
--        JS::Rooted<JS::Value> rootedValue(cx, aValue);
-+        JS::Rooted<JS::Value> value(cx, aValue);
-         nsString string;
--        if (!nsContentUtils::StringifyJSON(cx, aValue, string,
--                                           UndefinedIsNullStringLiteral)) {
-+        if (!JS_StringifyWithLengthHint(cx, &value, nullptr,
-+                                        JS::NullHandleValue, AppendJSON,
-+                                        &string, opts.mLengthHint)) {
-           JS::Rooted<JS::Value> exn(cx, JS::UndefinedValue());
-           if (JS_GetPendingException(cx, &exn)) {
-             JS_ClearPendingException(cx);
-             promise->MaybeReject(exn);
-           } else {
-@@ -637,22 +644,29 @@
-                                     "Could not serialize object to JSON"_ns));
-           }
-           return;
-         }
- 
--        DispatchAndResolve<uint32_t>(
-+        DispatchAndResolve<dom::WriteJSONResult>(
-             state->mEventQueue, promise,
-             [file = std::move(file), string = std::move(string),
--             opts = std::move(opts)]() -> Result<uint32_t, IOError> {
-+             opts = std::move(opts)]() -> Result<WriteJSONResult, IOError> {
-               nsAutoCString utf8Str;
-               if (!CopyUTF16toUTF8(string, utf8Str, fallible)) {
-                 return Err(IOError(
-                     NS_ERROR_OUT_OF_MEMORY,
-                     "Failed to write to `%s': could not allocate buffer",
-                     file->HumanReadablePath().get()));
-               }
--              return WriteSync(file, AsBytes(Span(utf8Str)), opts);
-+
-+              uint32_t size =
-+                  MOZ_TRY(WriteSync(file, AsBytes(Span(utf8Str)), opts));
-+
-+              dom::WriteJSONResult result;
-+              result.mSize = size;
-+              result.mJsonLength = static_cast<uint32_t>(string.Length());
-+              return result;
-             });
-       });
- }
- 
- /* static */
-@@ -2838,10 +2852,20 @@
- 
-   opts.mCompress = aOptions.mCompress;
-   return opts;
- }
- 
-+Result<IOUtils::InternalWriteOpts, IOUtils::IOError>
-+IOUtils::InternalWriteOpts::FromBinding(const WriteJSONOptions& aOptions) {
-+  InternalWriteOpts opts =
-+      MOZ_TRY(FromBinding(static_cast<const WriteOptions&>(aOptions)));
-+
-+  opts.mLengthHint = aOptions.mLengthHint;
-+
-+  return opts;
-+}
-+
- /* static */
- Result<IOUtils::JsBuffer, IOUtils::IOError> IOUtils::JsBuffer::Create(
-     IOUtils::BufferKind aBufferKind, size_t aCapacity) {
-   JsBuffer buffer(aBufferKind, aCapacity);
-   if (aCapacity != 0 && !buffer.mBuffer) {
-diff --git a/xpcom/ioutils/tests/test_ioutils_read_write_json.html b/xpcom/ioutils/tests/test_ioutils_read_write_json.html
---- a/xpcom/ioutils/tests/test_ioutils_read_write_json.html
-+++ b/xpcom/ioutils/tests/test_ioutils_read_write_json.html
-@@ -140,10 +140,43 @@
-       );
- 
-       await cleanup(filename);
-     });
- 
-+    add_task(async function test_writeJSON_return() {
-+      const filename = PathUtils.join(PathUtils.tempDir, "test_ioutils_writeJSON_return.tmp");
-+
-+      const obj = { emoji: "☕️ ⚧️ 😀 🖖🏿 🤠 🏳️‍🌈 🥠 🏴‍☠️ 🪐" };
-+
-+      const expectedJson = JSON.stringify(obj);
-+      const size = new TextEncoder().encode(expectedJson).byteLength;
-+
-+      {
-+        const result = await IOUtils.writeJSON(filename, obj, { lengthHint: 0 });
-+
-+        is(await IOUtils.readUTF8(filename), expectedJson, "should have written expected JSON");
-+
-+        is(typeof result, "object", "writeJSON returns an object");
-+        ok(result !== null, "writeJSON returns non-null");
-+
-+        ok(Object.hasOwn(result, "size"), "result has size property");
-+        ok(Object.hasOwn(result, "jsonLength"), "result has jsonLength property");
-+
-+        is(result.size, size, "Should have written the expected number of bytes");
-+        is(result.jsonLength, expectedJson.length, "Should have written the expected number of UTF-16 codepoints");
-+      }
-+
-+      {
-+        const result = await IOUtils.writeJSON(filename, obj, { lengthHint: expectedJson.length, compress: true });
-+
-+        isnot(result.size, size, "Should have written a different number of bytes due to compression");
-+        is(result.jsonLength, expectedJson.length, "Should have written the same number of UTF-16 codepoints");
-+      }
-+
-+      await cleanup(filename);
-+    });
-+
-     add_task(async function test_append_json() {
-       const filename = PathUtils.join(PathUtils.tempDir, "test_ioutils_append_json.tmp");
- 
-       await IOUtils.writeJSON(filename, OBJECT);
- 
-
diff --git a/src/external-patches/firefox/session_store_use_size_hint/D298708.patch b/src/external-patches/firefox/session_store_use_size_hint/D298708.patch
deleted file mode 100644
index 30b4d4b03..000000000
--- a/src/external-patches/firefox/session_store_use_size_hint/D298708.patch
+++ /dev/null
@@ -1,254 +0,0 @@
-diff --git a/browser/components/sessionstore/SessionWriter.sys.mjs b/browser/components/sessionstore/SessionWriter.sys.mjs
---- a/browser/components/sessionstore/SessionWriter.sys.mjs
-+++ b/browser/components/sessionstore/SessionWriter.sys.mjs
-@@ -80,10 +80,14 @@
-       return await SessionWriterInternal.wipe();
-     } finally {
-       unlock();
-     }
-   },
-+
-+  get _jsonLengthHint() {
-+    return SessionWriterInternal._lastJsonLength;
-+  },
- };
- 
- const SessionWriterInternal = {
-   // Path to the files used by the SessionWriter
-   Paths: null,
-@@ -104,10 +108,14 @@
-   /**
-    * Number of old upgrade backups that are being kept
-    */
-   maxUpgradeBackups: null,
- 
-+  // Estimated JSON string length from the previous write, used to pre-size
-+  // the serialization buffer and avoid incremental reallocations.
-+  _lastJsonLength: 0,
-+
-   /**
-    * Initialize (or reinitialize) the writer.
-    *
-    * @param {string} origin Which of sessionstore.js or its backups
-    *   was used. One of the `STATE_*` constants defined above.
-@@ -201,48 +209,60 @@
-         }
-       }
- 
-       let startWriteMs = Date.now();
-       let fileStat;
-+      // Add 5% headroom to the hint so small growth between saves doesn't
-+      // cause reallocs. The compressed-size-based estimate already has
-+      // sufficient margin from the 4x multiplier.
-+      let jsonLengthHint = Math.ceil(this._lastJsonLength * 1.05);
-+
-+      let uncompressedBytes;
- 
-       if (options.isFinalWrite) {
-         // We are shutting down. At this stage, we know that
-         // $Paths.clean is either absent or corrupted. If it was
-         // originally present and valid, it has been moved to
-         // $Paths.cleanBackup a long time ago. We can therefore write
-         // with the guarantees that we erase no important data.
--        await IOUtils.writeJSON(this.Paths.clean, state, {
-+        uncompressedBytes = await IOUtils.writeJSON(this.Paths.clean, state, {
-           tmpPath: this.Paths.clean + ".tmp",
-           compress: true,
-+          jsonLengthHint,
-         });
-         fileStat = await IOUtils.stat(this.Paths.clean);
-       } else if (this.state == STATE_RECOVERY) {
-         // At this stage, either $Paths.recovery was written >= 15
-         // seconds ago during this session or we have just started
-         // from $Paths.recovery left from the previous session. Either
-         // way, $Paths.recovery is good. We can move $Path.backup to
-         // $Path.recoveryBackup without erasing a good file with a bad
-         // file.
--        await IOUtils.writeJSON(this.Paths.recovery, state, {
-+        uncompressedBytes = await IOUtils.writeJSON(this.Paths.recovery, state, {
-           tmpPath: this.Paths.recovery + ".tmp",
-           backupFile: this.Paths.recoveryBackup,
-           compress: true,
-+          jsonLengthHint,
-         });
-         fileStat = await IOUtils.stat(this.Paths.recovery);
-       } else {
-         // In other cases, either $Path.recovery is not necessary, or
-         // it doesn't exist or it has been corrupted. Regardless,
-         // don't backup $Path.recovery.
--        await IOUtils.writeJSON(this.Paths.recovery, state, {
-+        uncompressedBytes = await IOUtils.writeJSON(this.Paths.recovery, state, {
-           tmpPath: this.Paths.recovery + ".tmp",
-           compress: true,
-+          jsonLengthHint,
-         });
-         fileStat = await IOUtils.stat(this.Paths.recovery);
-       }
- 
-       telemetry.writeFileMs = Date.now() - startWriteMs;
-       telemetry.fileSizeBytes = fileStat.size;
-+      // Use the actual pre-compression size from this write as the hint
-+      // for the next write's buffer allocation.
-+      this._lastJsonLength = uncompressedBytes;
-       lazy.sessionStoreLogger.debug(
-         `SessionWriter.write wrote ${telemetry.fileSizeBytes} bytes in ${telemetry.writeFileMs}ms`
-       );
-     } catch (ex) {
-       // Don't throw immediately
-@@ -375,10 +395,11 @@
-     } catch (ex) {
-       exn = exn || ex;
-     }
- 
-     this.state = STATE_EMPTY;
-+    this._lastJsonLength = 0;
-     if (exn) {
-       throw exn;
-     }
- 
-     return { result: true };
-diff --git a/browser/components/sessionstore/test/unit/test_write_json_length_hint.js b/browser/components/sessionstore/test/unit/test_write_json_length_hint.js
-new file mode 100644
---- /dev/null
-+++ b/browser/components/sessionstore/test/unit/test_write_json_length_hint.js
-@@ -0,0 +1,73 @@
-+/* Any copyright is dedicated to the Public Domain.
-+   http://creativecommons.org/publicdomain/zero/1.0/ */
-+
-+"use strict";
-+
-+const { SessionWriter } = ChromeUtils.importESModule(
-+  "resource:///modules/sessionstore/SessionWriter.sys.mjs"
-+);
-+
-+const profd = do_get_profile();
-+const { SessionFile } = ChromeUtils.importESModule(
-+  "resource:///modules/sessionstore/SessionFile.sys.mjs"
-+);
-+
-+const { updateAppInfo } = ChromeUtils.importESModule(
-+  "resource://testing-common/AppInfo.sys.mjs"
-+);
-+updateAppInfo({
-+  name: "SessionRestoreTest",
-+  ID: "{230de50e-4cd1-11dc-8314-0800200c9a66}",
-+  version: "1",
-+  platformVersion: "",
-+});
-+
-+add_setup(async function () {
-+  let source = do_get_file("data/sessionstore_valid.js");
-+  source.copyTo(profd, "sessionstore.js");
-+  await writeCompressedFile(
-+    SessionFile.Paths.clean.replace("jsonlz4", "js"),
-+    SessionFile.Paths.clean
-+  );
-+  await SessionFile.read();
-+});
-+
-+add_task(async function test_length_hint_updates_after_write() {
-+  Assert.equal(
-+    SessionWriter._jsonLengthHint,
-+    0,
-+    "Length hint starts at 0"
-+  );
-+
-+  await SessionFile.write({});
-+
-+  let hintAfterSmall = SessionWriter._jsonLengthHint;
-+  Assert.equal(
-+    hintAfterSmall,
-+    JSON.stringify({}).length,
-+    "Hint matches the uncompressed JSON byte length"
-+  );
-+
-+  let largerState = await IOUtils.readJSON(
-+    PathUtils.join(do_get_cwd().path, "data", "sessionstore_complete.json")
-+  );
-+  await SessionFile.write(largerState);
-+
-+  Assert.greater(
-+    SessionWriter._jsonLengthHint,
-+    hintAfterSmall,
-+    "Hint grows after writing a larger state"
-+  );
-+});
-+
-+add_task(async function test_length_hint_resets_on_wipe() {
-+  await SessionFile.write({ windows: [{ tabs: [{ entries: [] }] }] });
-+  Assert.greater(SessionWriter._jsonLengthHint, 0, "Hint is nonzero");
-+
-+  await SessionFile.wipe();
-+  Assert.equal(
-+    SessionWriter._jsonLengthHint,
-+    0,
-+    "Hint resets to 0 after wipe"
-+  );
-+});
-diff --git a/browser/components/sessionstore/test/unit/xpcshell.toml b/browser/components/sessionstore/test/unit/xpcshell.toml
---- a/browser/components/sessionstore/test/unit/xpcshell.toml
-+++ b/browser/components/sessionstore/test/unit/xpcshell.toml
-@@ -39,5 +39,10 @@
- skip-if = [
-   "condprof", # Bug 1769154
- ]
- 
- ["test_startup_session_async.js"]
-+
-+["test_write_json_length_hint.js"]
-+support-files = [
-+  "data/sessionstore_complete.json",
-+]
-diff --git a/dom/chrome-webidl/IOUtils.webidl b/dom/chrome-webidl/IOUtils.webidl
---- a/dom/chrome-webidl/IOUtils.webidl
-+++ b/dom/chrome-webidl/IOUtils.webidl
-@@ -101,12 +101,12 @@
-    *
-    * @param path      An absolute file path
-    * @param value     The value to be serialized.
-    * @param options   Options for writing the file. The "append" mode is not supported.
-    *
--   * @return Resolves with the number of bytes successfully written to the file,
--   *         otherwise rejects with a DOMException.
-+   * @return Resolves with the pre-compression size of the serialized JSON in
-+   *         bytes (UTF-8), otherwise rejects with a DOMException.
-    */
-   [NewObject]
-   Promise<WriteJSONResult> writeJSON(DOMString path, any value, optional WriteJSONOptions options = {});
-   /**
-    * Moves the file from |sourcePath| to |destPath|, creating necessary parents.
-@@ -564,10 +564,16 @@
-   boolean flush = false;
-   /**
-    * If true, compress the data with LZ4-encoding before writing to the file.
-    */
-   boolean compress = false;
-+  /**
-+   * For |writeJSON|, a hint for the expected JSON string length in UTF-16 code
-+   * units. When provided, the JSON serializer pre-allocates a buffer of this
-+   * size to avoid incremental reallocations.
-+   */
-+  unsigned long long jsonLengthHint = 0;
- };
- 
- /**
-  * Options to be passed to the |IOUtils.writeJSON| method.
-  */
-diff --git a/xpcom/ioutils/IOUtils.cpp b/xpcom/ioutils/IOUtils.cpp
---- a/xpcom/ioutils/IOUtils.cpp
-+++ b/xpcom/ioutils/IOUtils.cpp
-@@ -629,10 +629,13 @@
-         }
- 
-         JSContext* cx = aGlobal.Context();
-         JS::Rooted<JS::Value> value(cx, aValue);
-         nsString string;
-+        if (opts.mLengthHint) {
-+          string.SetCapacity(opts.mLengthHint);
-+        }
-         if (!JS_StringifyWithLengthHint(cx, &value, nullptr,
-                                         JS::NullHandleValue, AppendJSON,
-                                         &string, opts.mLengthHint)) {
-           JS::Rooted<JS::Value> exn(cx, JS::UndefinedValue());
-           if (JS_GetPendingException(cx, &exn)) {
-
diff --git a/src/external-patches/manifest.json b/src/external-patches/manifest.json
index e72f1a3df..8f89a255f 100644
--- a/src/external-patches/manifest.json
+++ b/src/external-patches/manifest.json
@@ -4,31 +4,8 @@
 [
   {
     "type": "phabricator",
-    "ids": [
-      "D284084",
-      "D299584"
-    ],
-    "name": "Native MacOS popovers",
-    "replaces": {
-      // Specifically trying to target FeatureCallout.sys.mjs's change.
-      // IMPORTANT: Make sure Feature callouts STILL use native popopvers when
-      //    syncing from upstream, as this is a critical part of the patch.
-      "+            nonnativepopover=\"true\"": "+ ",
-
-      // Fix conflicts with upstream changes.
-      "--menuitem-border-radius: var(--panel-menuitem-border-radius)": "--menuitem-border-radius: var(--arrowpanel-menuitem-border-radius)",
-      "--menuitem-padding: var(--panel-menuitem-padding)": "--menuitem-padding: var(--arrowpanel-menuitem-padding)",
-      "--menuitem-margin: var(--panel-menuitem-margin)": "--menuitem-margin: var(--arrowpanel-menuitem-margin)",
-
-      " \n #include \"nsCocoaWindow.h\"\n \n #include \"nsISupportsPrimitives.h\"\n #include \"nsArrayUtils.h\"":
-        "  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */\n \n #include \"nsCocoaWindow.h\"\n \n #include \"nsISupportsPrimitives.h\"\n #include \"nsArrayUtils.h\"",
-      " #include \"nsISupportsPrimitives.h\"\n": "",
-
-      "     Atom(\"nonnative\", \"nonnative\"),\n": "",
-      "Atom(\"noscript\", \"noscript\"),": "Atom(\"noscript\", \"noscript\"),\n     Atom(\"noshade\", \"noshade\"),",
-
-      "GetBoolAttr(nsGkAtoms::nonnative)": "GetBoolAttr(nsGkAtoms::nonnativepopover)"
-    }
+    "id": "D299584",
+    "name": "Native MacOS popovers fix"
   },
   {
     "type": "phabricator",
@@ -62,17 +39,5 @@
     "type": "phabricator",
     "id": "D291714",
     "name": "gh-12979 Clip dirty_rect to device_size"
-  },
-  {
-    "type": "phabricator",
-    "ids": [
-      "D247215",
-      "D298708"
-    ],
-    "name": "Session store use size hint"
-  },
-  {
-    "type": "local",
-    "path": "firefox/bug_2013682_allow_stacking_contexts_to_be_promoted.patch"
   }
 ]
diff --git a/src/gfx/layers/AnimationInfo-cpp.patch b/src/gfx/layers/AnimationInfo-cpp.patch
index 7a91671c6..83ce49a05 100644
--- a/src/gfx/layers/AnimationInfo-cpp.patch
+++ b/src/gfx/layers/AnimationInfo-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/gfx/layers/AnimationInfo.cpp b/gfx/layers/AnimationInfo.cpp
-index 1d330056bd7a4e89aac5e5296a3c164fb42b5c42..629fbdd748310c31aeb16b0a8d8e862a99314cc9 100644
+index b4941588bfbd94a337f2e848c659021723e1500d..8f91ca5b2fcca6ff04aa2c0af5ba26dd9fe7df0e 100644
 --- a/gfx/layers/AnimationInfo.cpp
 +++ b/gfx/layers/AnimationInfo.cpp
 @@ -14,6 +14,7 @@
diff --git a/src/layout/base/PresShell-cpp.patch b/src/layout/base/PresShell-cpp.patch
index 3ec1da1b6..e193319cf 100644
--- a/src/layout/base/PresShell-cpp.patch
+++ b/src/layout/base/PresShell-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/base/PresShell.cpp b/layout/base/PresShell.cpp
-index b5930f71e362eb78f74888e1b33b2a6f9dbb4ea4..2105911a18b64e210d3125fec1bfa8058ca07d4e 100644
+index 9d651a17a91d2975017f5e21f1f533c13cc17659..ebc173c4fb6208eb771118f8edd40a4383364d55 100644
 --- a/layout/base/PresShell.cpp
 +++ b/layout/base/PresShell.cpp
-@@ -135,6 +135,7 @@
+@@ -137,6 +137,7 @@
  #include "mozilla/layers/WebRenderLayerManager.h"
  #include "mozilla/layers/WebRenderUserData.h"
  #include "mozilla/layout/ScrollAnchorContainer.h"
@@ -10,7 +10,7 @@ index b5930f71e362eb78f74888e1b33b2a6f9dbb4ea4..2105911a18b64e210d3125fec1bfa805
  #include "nsAnimationManager.h"
  #include "nsAutoLayoutPhase.h"
  #include "nsCOMArray.h"
-@@ -5572,7 +5573,8 @@ nscolor PresShell::GetDefaultBackgroundColorToDraw() const {
+@@ -5614,7 +5615,8 @@ nscolor PresShell::GetDefaultBackgroundColorToDraw() const {
    if (!mPresContext) {
      return NS_RGB(255, 255, 255);
    }
diff --git a/src/layout/generic/nsContainerFrame-cpp.patch b/src/layout/generic/nsContainerFrame-cpp.patch
index e8d69b552..935aaa8a3 100644
--- a/src/layout/generic/nsContainerFrame-cpp.patch
+++ b/src/layout/generic/nsContainerFrame-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/generic/nsContainerFrame.cpp b/layout/generic/nsContainerFrame.cpp
-index c27fec39f9e32e61f0e335e5880ce3e97074965b..7b4f7760dcf92ead74c9f89cfc7a067892af9e34 100644
+index 45090fcb5a0d09109348f916728d01c589fd9a22..a6a2c5dc614c3ef85384f03938383b0a9025d718 100644
 --- a/layout/generic/nsContainerFrame.cpp
 +++ b/layout/generic/nsContainerFrame.cpp
-@@ -349,7 +349,8 @@ class nsDisplaySelectionOverlay final : public nsPaintedDisplayItem {
+@@ -350,7 +350,8 @@ class nsDisplaySelectionOverlay final : public nsPaintedDisplayItem {
        nsDisplayListBuilder* aDisplayListBuilder) override;
    NS_DISPLAY_DECL_NAME("SelectionOverlay", TYPE_SELECTION_OVERLAY)
  
@@ -12,7 +12,7 @@ index c27fec39f9e32e61f0e335e5880ce3e97074965b..7b4f7760dcf92ead74c9f89cfc7a0678
    static DeviceColor ApplyTransparencyIfNecessary(nscolor);
  
   private:
-@@ -371,9 +372,9 @@ DeviceColor nsDisplaySelectionOverlay::ApplyTransparencyIfNecessary(
+@@ -372,9 +373,9 @@ DeviceColor nsDisplaySelectionOverlay::ApplyTransparencyIfNecessary(
  }
  
  DeviceColor nsDisplaySelectionOverlay::ComputeColorFromSelectionStyle(
@@ -25,7 +25,7 @@ index c27fec39f9e32e61f0e335e5880ce3e97074965b..7b4f7760dcf92ead74c9f89cfc7a0678
  }
  
  void nsDisplaySelectionOverlay::Paint(nsDisplayListBuilder* aBuilder,
-@@ -472,7 +473,8 @@ void nsContainerFrame::DisplaySelectionOverlay(nsDisplayListBuilder* aBuilder,
+@@ -473,7 +474,8 @@ void nsContainerFrame::DisplaySelectionOverlay(nsDisplayListBuilder* aBuilder,
              ComputeHighlightSelectionStyle(sd->mHighlightData.mHighlightName)) {
        aList->AppendNewToTopWithIndex<nsDisplaySelectionOverlay>(
            aBuilder, this, index++,
@@ -35,7 +35,7 @@ index c27fec39f9e32e61f0e335e5880ce3e97074965b..7b4f7760dcf92ead74c9f89cfc7a0678
      }
    }
  
-@@ -480,7 +482,8 @@ void nsContainerFrame::DisplaySelectionOverlay(nsDisplayListBuilder* aBuilder,
+@@ -481,7 +483,8 @@ void nsContainerFrame::DisplaySelectionOverlay(nsDisplayListBuilder* aBuilder,
    if (normal) {
      DeviceColor color;
      if (RefPtr<ComputedStyle> style = ComputeSelectionStyle(selectionValue)) {
diff --git a/src/layout/generic/nsIFrame-h.patch b/src/layout/generic/nsIFrame-h.patch
index be0b97926..97542f7e1 100644
--- a/src/layout/generic/nsIFrame-h.patch
+++ b/src/layout/generic/nsIFrame-h.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/generic/nsIFrame.h b/layout/generic/nsIFrame.h
-index 588b00d7ee115f0a7513e357af7ab5eee28311c1..bf07b69c7e7957e6e558403e069f16e2dec3cad0 100644
+index 44673860100e7a0b1af95bf3e1d4148d3c643a6e..7f9dde0f1fb9ab85adb12a470ea6f55ab5be224e 100644
 --- a/layout/generic/nsIFrame.h
 +++ b/layout/generic/nsIFrame.h
-@@ -1008,7 +1008,7 @@ class nsIFrame : public nsQueryFrame {
+@@ -1010,7 +1010,7 @@ class nsIFrame : public nsQueryFrame {
    /** Also forward GetVisitedDependentColor to the style */
    template <typename T, typename S>
    nscolor GetVisitedDependentColor(T S::* aField) {
diff --git a/src/layout/generic/nsImageFrame-cpp.patch b/src/layout/generic/nsImageFrame-cpp.patch
index d64f3fd46..b6ddcab8f 100644
--- a/src/layout/generic/nsImageFrame-cpp.patch
+++ b/src/layout/generic/nsImageFrame-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/generic/nsImageFrame.cpp b/layout/generic/nsImageFrame.cpp
-index c4ff60477e3061aeeecbdedb5ad8054d3808ab6e..40857d430eda576c4fca613857860f32abb39e2d 100644
+index bb9f5fb626b7c48144e2040967817cfbce82afd9..5c598170d9df73a498b3b62f3e56756c756cce66 100644
 --- a/layout/generic/nsImageFrame.cpp
 +++ b/layout/generic/nsImageFrame.cpp
-@@ -1764,7 +1764,7 @@ void nsImageFrame::DisplayAltText(nsPresContext* aPresContext,
+@@ -1765,7 +1765,7 @@ void nsImageFrame::DisplayAltText(nsPresContext* aPresContext,
                                    const nsRect& aRect) {
    // Set font and color
    aRenderingContext.SetColor(
diff --git a/src/layout/generic/nsTextFrame-cpp.patch b/src/layout/generic/nsTextFrame-cpp.patch
index 0c8afe005..488df7fe5 100644
--- a/src/layout/generic/nsTextFrame-cpp.patch
+++ b/src/layout/generic/nsTextFrame-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/generic/nsTextFrame.cpp b/layout/generic/nsTextFrame.cpp
-index e7f7943a19d3ac71872d0a8439b6ed90e8fd423d..eb3e84fabc67d95b6d194b5aaf3aaef7c38480c0 100644
+index 6c3615f90cdb1e5a42e15a0618cc4649cd0d0a15..17eb9d787e83093b0fea2ce43f05d7a447bd5cc9 100644
 --- a/layout/generic/nsTextFrame.cpp
 +++ b/layout/generic/nsTextFrame.cpp
-@@ -6381,7 +6381,7 @@ void nsTextFrame::DrawSelectionDecorations(
+@@ -6376,7 +6376,7 @@ void nsTextFrame::DrawSelectionDecorations(
            computedStyleFromPseudo->StyleTextReset()->mTextDecorationStyle;
        params.color =
            computedStyleFromPseudo->StyleTextReset()
diff --git a/src/layout/painting/nsImageRenderer-cpp.patch b/src/layout/painting/nsImageRenderer-cpp.patch
index 6323f3471..907df766d 100644
--- a/src/layout/painting/nsImageRenderer-cpp.patch
+++ b/src/layout/painting/nsImageRenderer-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/layout/painting/nsImageRenderer.cpp b/layout/painting/nsImageRenderer.cpp
-index 4acb7670e971024f9c63e48ff711bbdd1dc02301..518543f29f396d819a71edb984879de22f8434a8 100644
+index 6e464b48c90174b8954aad8a79bae30a7a30cbc9..9ea9a4963ceae679f092e014ac24a0d24fb106ce 100644
 --- a/layout/painting/nsImageRenderer.cpp
 +++ b/layout/painting/nsImageRenderer.cpp
 @@ -90,7 +90,7 @@ static already_AddRefed<imgIContainer> GetSymbolicIconImage(nsAtom* aName,
@@ -9,9 +9,9 @@ index 4acb7670e971024f9c63e48ff711bbdd1dc02301..518543f29f396d819a71edb984879de2
 -  const auto fg = aFrame->StyleText()->mColor.ToColor();
 +  const auto fg = aFrame->StyleText()->mColor.ToColor(aFrame);
    auto key = std::make_tuple(aName, aScale, fg);
-   auto* cache = aFrame->GetProperty(SymbolicImageCacheProp());
-   if (!cache) {
-@@ -567,7 +567,7 @@ ImgDrawResult nsImageRenderer::Draw(nsPresContext* aPresContext,
+   auto* cache = aFrame->GetOrCreateDeletableProperty(SymbolicImageCacheProp());
+   auto lookup = cache->Lookup(key);
+@@ -575,7 +575,7 @@ ImgDrawResult nsImageRenderer::Draw(nsPresContext* aPresContext,
      }
      case StyleImage::Tag::Gradient: {
        nsCSSGradientRenderer renderer = nsCSSGradientRenderer::Create(
@@ -20,7 +20,7 @@ index 4acb7670e971024f9c63e48ff711bbdd1dc02301..518543f29f396d819a71edb984879de2
  
        renderer.Paint(*ctx, aDest, aFill, aRepeatSize, aSrc, aDirtyRect,
                       aOpacity);
-@@ -644,7 +644,7 @@ ImgDrawResult nsImageRenderer::BuildWebRenderDisplayItems(
+@@ -652,7 +652,7 @@ ImgDrawResult nsImageRenderer::BuildWebRenderDisplayItems(
    switch (mType) {
      case StyleImage::Tag::Gradient: {
        nsCSSGradientRenderer renderer = nsCSSGradientRenderer::Create(
@@ -29,7 +29,7 @@ index 4acb7670e971024f9c63e48ff711bbdd1dc02301..518543f29f396d819a71edb984879de2
  
        renderer.BuildWebRenderDisplayItems(aBuilder, aSc, aDest, aFill,
                                            aRepeatSize, aSrc,
-@@ -670,6 +670,8 @@ ImgDrawResult nsImageRenderer::BuildWebRenderDisplayItems(
+@@ -678,6 +678,8 @@ ImgDrawResult nsImageRenderer::BuildWebRenderDisplayItems(
            nsPresContext::AppUnitsToIntCSSPixels(aDest.height)};
  
        SVGImageContext svgContext(Some(destCSSSize));
@@ -37,8 +37,8 @@ index 4acb7670e971024f9c63e48ff711bbdd1dc02301..518543f29f396d819a71edb984879de2
 +                                           *mForFrame->PresContext());
        Maybe<ImageIntRegion> region;
  
-       const int32_t appUnitsPerDevPixel =
-@@ -1076,7 +1078,7 @@ ImgDrawResult nsImageRenderer::DrawShapeImage(nsPresContext* aPresContext,
+       const int32_t appUnitsPerDevPixel = aPresContext->AppUnitsPerDevPixel();
+@@ -1092,7 +1094,7 @@ ImgDrawResult nsImageRenderer::DrawShapeImage(nsPresContext* aPresContext,
  
    if (mImage->IsGradient()) {
      nsCSSGradientRenderer renderer = nsCSSGradientRenderer::Create(
diff --git a/src/layout/style/GeckoBindings-cpp.patch b/src/layout/style/GeckoBindings-cpp.patch
index 0c9df23d6..461173615 100644
--- a/src/layout/style/GeckoBindings-cpp.patch
+++ b/src/layout/style/GeckoBindings-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/style/GeckoBindings.cpp b/layout/style/GeckoBindings.cpp
-index 56a16d313a5d30d12edf1f94459db1027af87002..3722f2d6ce6c0864956fed2b00c71a3286edc674 100644
+index ee784cef626a12da58ac1f6c6c8538c454f82f4f..32158faf39de766a16318018f325d0e6c6aef50c 100644
 --- a/layout/style/GeckoBindings.cpp
 +++ b/layout/style/GeckoBindings.cpp
-@@ -1068,7 +1068,7 @@ void Gecko_SetFontPaletteOverride(
+@@ -1032,7 +1032,7 @@ void Gecko_SetFontPaletteOverride(
      return;
    }
    aValues->mOverrides.AppendElement(gfx::FontPaletteValueSet::OverrideColor{
diff --git a/src/layout/style/nsStyleStruct-cpp.patch b/src/layout/style/nsStyleStruct-cpp.patch
index b4617b093..d387e9d13 100644
--- a/src/layout/style/nsStyleStruct-cpp.patch
+++ b/src/layout/style/nsStyleStruct-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/style/nsStyleStruct.cpp b/layout/style/nsStyleStruct.cpp
-index 80ca0cc08bc675359fbb09100eca43c8e3b9d413..d3ea525f6d84568c4e997a142bbfef6435d21034 100644
+index 758c673f48a5e5b2d440b67713340872e7db3041..3bfaeea43a6710338ab15bdd5dacd03752d718ae 100644
 --- a/layout/style/nsStyleStruct.cpp
 +++ b/layout/style/nsStyleStruct.cpp
-@@ -2208,7 +2208,7 @@ nscolor nsStyleBackground::BackgroundColor(const nsIFrame* aFrame) const {
+@@ -2212,7 +2212,7 @@ nscolor nsStyleBackground::BackgroundColor(const nsIFrame* aFrame) const {
  }
  
  nscolor nsStyleBackground::BackgroundColor(const ComputedStyle* aStyle) const {
diff --git a/src/layout/svg/SVGContextPaint-cpp.patch b/src/layout/svg/SVGContextPaint-cpp.patch
index 38110341c..b3f2069cd 100644
--- a/src/layout/svg/SVGContextPaint-cpp.patch
+++ b/src/layout/svg/SVGContextPaint-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/layout/svg/SVGContextPaint.cpp b/layout/svg/SVGContextPaint.cpp
-index 3df8728978c1b48ca326c852feb0553091a99673..9f9096205c3dd3551c41c547a1aee667c0a51238 100644
+index 57ef88da66a3cacc28f6ea83cf55e5f803be6e56..305a6ae18b7b3ad814fb2aea3d5971f341c68da5 100644
 --- a/layout/svg/SVGContextPaint.cpp
 +++ b/layout/svg/SVGContextPaint.cpp
 @@ -143,7 +143,7 @@ static void SetupInheritablePaint(const DrawTarget* aDrawTarget,
diff --git a/src/layout/svg/SVGGradientFrame-cpp.patch b/src/layout/svg/SVGGradientFrame-cpp.patch
index f79ff277b..e2ce808c9 100644
--- a/src/layout/svg/SVGGradientFrame-cpp.patch
+++ b/src/layout/svg/SVGGradientFrame-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/layout/svg/SVGGradientFrame.cpp b/layout/svg/SVGGradientFrame.cpp
-index 9c66d90fc0292abcab30c912968d3f84c0e181ff..aec0b2e48965729ccff19d632ac5e8fd04fd09eb 100644
+index b0d38b0fab01797328af0b1f1f48af8fb5eebe4d..953feffdc96143dc2d8f8e57f8bb4a6aeb33f0c5 100644
 --- a/layout/svg/SVGGradientFrame.cpp
 +++ b/layout/svg/SVGGradientFrame.cpp
 @@ -229,8 +229,9 @@ class MOZ_STACK_CLASS SVGColorStopInterpolator
@@ -18,9 +18,9 @@ index 9c66d90fc0292abcab30c912968d3f84c0e181ff..aec0b2e48965729ccff19d632ac5e8fd
    if (nStops == 1 || GradientVectorLengthIsZero()) {
      // The gradient paints a single colour, using the stop-color of the last
      // gradient step if there are more than one.
--    return do_AddRef(new gfxPattern(ToDeviceColor(stops.LastElement().mColor)));
-+    return do_AddRef(
-+        new gfxPattern(ToDeviceColor(stops.LastElement().mColor, aSource)));
+-    return MakeAndAddRef<gfxPattern>(ToDeviceColor(stops.LastElement().mColor));
++    return MakeAndAddRef<gfxPattern>(
++        ToDeviceColor(stops.LastElement().mColor, aSource));
    }
  
    // Get the transform list (if there is one). We do this after the returns
diff --git a/src/layout/svg/SVGTextFrame-cpp.patch b/src/layout/svg/SVGTextFrame-cpp.patch
index 33e45c798..79b600fb6 100644
--- a/src/layout/svg/SVGTextFrame-cpp.patch
+++ b/src/layout/svg/SVGTextFrame-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/svg/SVGTextFrame.cpp b/layout/svg/SVGTextFrame.cpp
-index 93f6f2a704734314586fa16b6a45b434f9c2304d..4503ee2b48be39bb2e61962316ef43ad292a7b27 100644
+index 96dfd52fc38fe0833da7fa4c669e2a911c04c236..bb6749f3275f22e1d462d0180e83eb9aa23b6dc0 100644
 --- a/layout/svg/SVGTextFrame.cpp
 +++ b/layout/svg/SVGTextFrame.cpp
-@@ -2662,9 +2662,9 @@ void SVGTextDrawPathCallbacks::ApplyOpacity(
+@@ -2665,9 +2665,9 @@ void SVGTextDrawPathCallbacks::ApplyOpacity(
      sRGBColor& aColor, const StyleSVGPaint& aPaint,
      const StyleSVGOpacity& aOpacity) const {
    if (aPaint.kind.tag == StyleSVGPaintKind::Tag::Color) {
@@ -15,7 +15,7 @@ index 93f6f2a704734314586fa16b6a45b434f9c2304d..4503ee2b48be39bb2e61962316ef43ad
    }
    aColor.a *= SVGUtils::GetOpacity(aOpacity, mContextPaint);
  }
-@@ -5076,8 +5076,8 @@ bool SVGTextFrame::ShouldRenderAsPath(nsTextFrame* aFrame,
+@@ -5083,8 +5083,8 @@ bool SVGTextFrame::ShouldRenderAsPath(nsTextFrame* aFrame,
    // It's possible nsTextFrame will support non-opaque shadows in the future,
    // in which case this test can be removed.
    if (style->mFill.kind.IsColor() && aFrame->StyleText()->HasTextShadow() &&
diff --git a/src/layout/svg/SVGUtils-cpp.patch b/src/layout/svg/SVGUtils-cpp.patch
index 577ca64ba..7478bb64d 100644
--- a/src/layout/svg/SVGUtils-cpp.patch
+++ b/src/layout/svg/SVGUtils-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/svg/SVGUtils.cpp b/layout/svg/SVGUtils.cpp
-index 93b73e1c665ea8e011af7026810db6cd23c8049b..004d1d0637d62fcde25a924df5392a7dc64f75dc 100644
+index 0819d5258b80f5600329547fd102240af057c5af..ee0478eeeb291991d0d97580375744f6c9a93b34 100644
 --- a/layout/svg/SVGUtils.cpp
 +++ b/layout/svg/SVGUtils.cpp
-@@ -1154,23 +1154,23 @@ gfxRect SVGUtils::PathExtentsToMaxStrokeExtents(const gfxRect& aPathExtents,
+@@ -1176,23 +1176,23 @@ gfxRect SVGUtils::PathExtentsToMaxStrokeExtents(const gfxRect& aPathExtents,
  /* static */
  nscolor SVGUtils::GetFallbackOrPaintColor(
      const ComputedStyle& aStyle, StyleSVGPaint nsStyleSVG::* aFillOrStroke,
@@ -30,7 +30,7 @@ index 93b73e1c665ea8e011af7026810db6cd23c8049b..004d1d0637d62fcde25a924df5392a7d
        break;
    }
    if (const auto* styleIfVisited = aStyle.GetStyleIfVisited()) {
-@@ -1184,7 +1184,8 @@ nscolor SVGUtils::GetFallbackOrPaintColor(
+@@ -1206,7 +1206,8 @@ nscolor SVGUtils::GetFallbackOrPaintColor(
      // another simple color.
      if (paintIfVisited.kind.IsColor() && paint.kind.IsColor()) {
        nscolor colors[2] = {
@@ -40,7 +40,7 @@ index 93b73e1c665ea8e011af7026810db6cd23c8049b..004d1d0637d62fcde25a924df5392a7d
        return ComputedStyle::CombineVisitedColors(colors,
                                                   aStyle.RelevantLinkVisited());
      }
-@@ -1254,7 +1255,7 @@ void SVGUtils::MakeFillPatternFor(nsIFrame* aFrame, gfxContext* aContext,
+@@ -1276,7 +1277,7 @@ void SVGUtils::MakeFillPatternFor(nsIFrame* aFrame, gfxContext* aContext,
    // objectBoundingBox where the width or height of the object is zero.
    // See http://www.w3.org/TR/SVG11/coords.html#ObjectBoundingBox
    sRGBColor color(sRGBColor::FromABGR(GetFallbackOrPaintColor(
@@ -49,7 +49,7 @@ index 93b73e1c665ea8e011af7026810db6cd23c8049b..004d1d0637d62fcde25a924df5392a7d
    color.a *= fillOpacity;
    aOutPattern->InitColorPattern(ToDeviceColor(color));
  }
-@@ -1321,7 +1322,7 @@ void SVGUtils::MakeStrokePatternFor(nsIFrame* aFrame, gfxContext* aContext,
+@@ -1343,7 +1344,7 @@ void SVGUtils::MakeStrokePatternFor(nsIFrame* aFrame, gfxContext* aContext,
    // objectBoundingBox where the width or height of the object is zero.
    // See http://www.w3.org/TR/SVG11/coords.html#ObjectBoundingBox
    sRGBColor color(sRGBColor::FromABGR(GetFallbackOrPaintColor(
diff --git a/src/layout/svg/SVGUtils-h.patch b/src/layout/svg/SVGUtils-h.patch
index 6adbbff91..065d530fc 100644
--- a/src/layout/svg/SVGUtils-h.patch
+++ b/src/layout/svg/SVGUtils-h.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/svg/SVGUtils.h b/layout/svg/SVGUtils.h
-index 1f1f7ad6b78e5c411651fee30bbbfeb784257e0a..28c7332aae411c4220bd00af08b491d31d2eb090 100644
+index a4367a69d488c4eab0592d5f460b035efda30e9a..03a305aeb03fe6902eb7aaeb524b70c88836d27f 100644
 --- a/layout/svg/SVGUtils.h
 +++ b/layout/svg/SVGUtils.h
-@@ -428,7 +428,7 @@ class SVGUtils final {
+@@ -429,7 +429,7 @@ class SVGUtils final {
  
    static nscolor GetFallbackOrPaintColor(
        const ComputedStyle&, StyleSVGPaint nsStyleSVG::* aFillOrStroke,
diff --git a/src/layout/tables/nsTableFrame-cpp.patch b/src/layout/tables/nsTableFrame-cpp.patch
index 7c480c702..1c3164ba3 100644
--- a/src/layout/tables/nsTableFrame-cpp.patch
+++ b/src/layout/tables/nsTableFrame-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/layout/tables/nsTableFrame.cpp b/layout/tables/nsTableFrame.cpp
-index 7c39ea94392dc158656621dfbee1be72bbcd46f8..e2fe47662b92ac6fb7fe2177d1d2cdab500bb969 100644
+index 00307e123b0d0bac93ad694e75141faca9bc4d56..86495743d49022626646d872f1ff46ed21aefe89 100644
 --- a/layout/tables/nsTableFrame.cpp
 +++ b/layout/tables/nsTableFrame.cpp
-@@ -4088,7 +4088,7 @@ static void GetColorAndStyle(const nsIFrame* aFrame, WritingMode aTableWM,
+@@ -4065,7 +4065,7 @@ static void GetColorAndStyle(const nsIFrame* aFrame, WritingMode aTableWM,
      return;
    }
    *aColor = aFrame->Style()->GetVisitedDependentColor(
diff --git a/src/layout/xul/tree/nsTreeBodyFrame-cpp.patch b/src/layout/xul/tree/nsTreeBodyFrame-cpp.patch
index 2b834bb1d..621d91b62 100644
--- a/src/layout/xul/tree/nsTreeBodyFrame-cpp.patch
+++ b/src/layout/xul/tree/nsTreeBodyFrame-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/layout/xul/tree/nsTreeBodyFrame.cpp b/layout/xul/tree/nsTreeBodyFrame.cpp
-index b6aa10336e7994c830e0326298820c3a534f8094..7747c52e5c5d227894d8f7fb377c65861dc51c4c 100644
+index f88360d5a787884510c3b461319b1536800a3d8f..1b1df582a1138a9de57fa69cde4441225ad7d4b3 100644
 --- a/layout/xul/tree/nsTreeBodyFrame.cpp
 +++ b/layout/xul/tree/nsTreeBodyFrame.cpp
 @@ -2865,7 +2865,8 @@ ImgDrawResult nsTreeBodyFrame::PaintCell(
diff --git a/src/modules/libpref/init/StaticPrefList-yaml.patch b/src/modules/libpref/init/StaticPrefList-yaml.patch
index 2000a4fa7..6ffa98211 100644
--- a/src/modules/libpref/init/StaticPrefList-yaml.patch
+++ b/src/modules/libpref/init/StaticPrefList-yaml.patch
@@ -1,8 +1,8 @@
 diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
-index f36788f33221aa6d3709bcc09c05a90ff83e7c48..7f794117d155cea5772568115710e67c947d79e3 100644
+index b96e9d02beda72c92c295a2799c851b94945ada6..db79081c6d1bbdf78a38a6cc13494476827bf0d1 100644
 --- a/modules/libpref/init/StaticPrefList.yaml
 +++ b/modules/libpref/init/StaticPrefList.yaml
-@@ -20238,6 +20238,7 @@
+@@ -20580,6 +20580,7 @@
    mirror: always
  #endif
  
diff --git a/src/modules/libpref/moz-build.patch b/src/modules/libpref/moz-build.patch
index cf3b17aa5..2098c06cc 100644
--- a/src/modules/libpref/moz-build.patch
+++ b/src/modules/libpref/moz-build.patch
@@ -1,5 +1,5 @@
 diff --git a/modules/libpref/moz.build b/modules/libpref/moz.build
-index 29140c6f29c1784ea594ccd84a005a9ec27eaaf5..62837e73bfee87b8bf708df912a6d07d06eea8b1 100644
+index fa05921295e8f028c4893c3cc224415d1251b877..acfcecaf6b0ae5f0aef5b540d9e60a3f5ffd02f4 100644
 --- a/modules/libpref/moz.build
 +++ b/modules/libpref/moz.build
 @@ -91,6 +91,7 @@ pref_groups = [
diff --git a/src/security/mac/hardenedruntime/production/firefox-browser-xml.patch b/src/security/mac/hardenedruntime/production/firefox-browser-xml.patch
index 2a4dc288a..713006269 100644
--- a/src/security/mac/hardenedruntime/production/firefox-browser-xml.patch
+++ b/src/security/mac/hardenedruntime/production/firefox-browser-xml.patch
@@ -1,5 +1,5 @@
 diff --git a/security/mac/hardenedruntime/production/firefox.browser.xml b/security/mac/hardenedruntime/production/firefox.browser.xml
-index b7b74dd2bdfee3c724c4361e98c8addaf6148465..ad1da805bc76df1ea7f8504305e0deccd9ed3f65 100644
+index eaee811d99d06ec53fbc78659aae495643f1deeb..cb0f8548a6622ba2f0847259f346c8301f44d8c3 100644
 --- a/security/mac/hardenedruntime/production/firefox.browser.xml
 +++ b/security/mac/hardenedruntime/production/firefox.browser.xml
 @@ -29,7 +29,7 @@
diff --git a/src/servo/components/style/queries/feature_expression-rs.patch b/src/servo/components/style/queries/feature_expression-rs.patch
index 43be785a4..156883844 100644
--- a/src/servo/components/style/queries/feature_expression-rs.patch
+++ b/src/servo/components/style/queries/feature_expression-rs.patch
@@ -1,17 +1,17 @@
 diff --git a/servo/components/style/queries/feature_expression.rs b/servo/components/style/queries/feature_expression.rs
-index e007f3e1583b5c53475e9dbbb3a52cde16d37e25..906d86922311cfe2339719d07d64b2af8819b05a 100644
+index 1519c1993d3f3c689aac423f430a53efe92aa009..9c94cda6290448c040e43182957c10ead99ba178 100644
 --- a/servo/components/style/queries/feature_expression.rs
 +++ b/servo/components/style/queries/feature_expression.rs
-@@ -21,7 +21,7 @@ use crate::str::{starts_with_ignore_ascii_case, string_as_ascii_lowercase};
- use crate::stylesheets::{CssRuleType, Origin, UrlExtraData};
- use crate::values::computed::{self, CSSPixelLength, Ratio, ToComputedValue};
- use crate::values::specified::{Angle, Integer, Length, Number, Percentage, Resolution, Time};
--use crate::values::{CSSFloat, DashedIdent};
-+use crate::values::{CSSFloat, DashedIdent, AtomString};
+@@ -23,7 +23,7 @@ use crate::values::computed::{self, CSSPixelLength, ToComputedValue};
+ use crate::values::specified::{
+     Angle, Integer, Length, Number, Percentage, Ratio, Resolution, Time,
+ };
+-use crate::values::DashedIdent;
++use crate::values::{DashedIdent, AtomString};
  use crate::{Atom, Zero};
  use cssparser::{Parser, ParserInput, Token};
  use selectors::kleene_value::KleeneValue;
-@@ -633,6 +633,10 @@ impl QueryFeatureExpression {
+@@ -643,6 +643,10 @@ impl QueryFeatureExpression {
                      .map(|v| *expect!(Enumerated, v));
                  return evaluator(context, computed);
              },
@@ -22,7 +22,7 @@ index e007f3e1583b5c53475e9dbbb3a52cde16d37e25..906d86922311cfe2339719d07d64b2af
              Evaluator::BoolInteger(eval) => {
                  let computed = self
                      .kind
-@@ -671,6 +675,7 @@ pub enum QueryExpressionValue {
+@@ -681,6 +685,7 @@ pub enum QueryExpressionValue {
      /// An enumerated value, defined by the variant keyword table in the
      /// feature's `mData` member.
      Enumerated(KeywordDiscriminant),
@@ -30,7 +30,7 @@ index e007f3e1583b5c53475e9dbbb3a52cde16d37e25..906d86922311cfe2339719d07d64b2af
      /// Value types only used by style-range query expressions, not feature queries.
      /// A CSS-wide keyword.
      Keyword(CSSWideKeyword),
-@@ -718,6 +723,7 @@ impl QueryExpressionValue {
+@@ -728,6 +733,7 @@ impl QueryExpressionValue {
                  Evaluator::Enumerated { serializer, .. } => dest.write_str(&*serializer(value)),
                  _ => unreachable!(),
              },
@@ -38,7 +38,7 @@ index e007f3e1583b5c53475e9dbbb3a52cde16d37e25..906d86922311cfe2339719d07d64b2af
          }
      }
  
-@@ -755,6 +761,9 @@ impl QueryExpressionValue {
+@@ -764,6 +770,9 @@ impl QueryExpressionValue {
              Evaluator::Resolution(..) => {
                  QueryExpressionValue::Resolution(Resolution::parse(context, input)?)
              },
diff --git a/src/servo/ports/geckolib/cbindgen-toml.patch b/src/servo/ports/geckolib/cbindgen-toml.patch
index 24433b060..7ceec28b5 100644
--- a/src/servo/ports/geckolib/cbindgen-toml.patch
+++ b/src/servo/ports/geckolib/cbindgen-toml.patch
@@ -1,8 +1,8 @@
 diff --git a/servo/ports/geckolib/cbindgen.toml b/servo/ports/geckolib/cbindgen.toml
-index e9ae0149e80a241b2a32ce445deb923af2fac445..0dc5768ab8bf89f7d6c31ff4c7bd4bb805d64509 100644
+index 17937bd70ead3b86e59b3da8c8d90591ee48e0a2..2bddfd549243ddc387107df00625ea5f38e5c655 100644
 --- a/servo/ports/geckolib/cbindgen.toml
 +++ b/servo/ports/geckolib/cbindgen.toml
-@@ -679,9 +679,9 @@ renaming_overrides_prefixing = true
+@@ -666,9 +666,9 @@ renaming_overrides_prefixing = true
    nscolor CalcColor(const nsIFrame*) const;
    /**
     * Compute the final color, taking into account the foreground color from the
@@ -14,7 +14,7 @@ index e9ae0149e80a241b2a32ce445deb923af2fac445..0dc5768ab8bf89f7d6c31ff4c7bd4bb8
    /**
     * Compute the final color, making the argument the foreground color.
     */
-@@ -704,9 +704,11 @@ renaming_overrides_prefixing = true
+@@ -691,9 +691,11 @@ renaming_overrides_prefixing = true
  
    /**
     * Convert this color to an nscolor. The color will be converted to sRGB first
diff --git a/src/testing/mochitest/browser-test-js.patch b/src/testing/mochitest/browser-test-js.patch
index e261774bf..00fa347ad 100644
--- a/src/testing/mochitest/browser-test-js.patch
+++ b/src/testing/mochitest/browser-test-js.patch
@@ -1,5 +1,5 @@
 diff --git a/testing/mochitest/browser-test.js b/testing/mochitest/browser-test.js
-index 2377812af77563d6e80178e3da47a537aa0576e2..e9e5c4a2f3b2ebb503605595f552f35eea4f9814 100644
+index 8ae4256b9f4a2c1ebce5bb0230d61a24ee625c07..8c1e6f1441553059f7a3a4654838cfd678717619 100644
 --- a/testing/mochitest/browser-test.js
 +++ b/testing/mochitest/browser-test.js
 @@ -497,10 +497,10 @@ Tester.prototype = {
@@ -15,7 +15,7 @@ index 2377812af77563d6e80178e3da47a537aa0576e2..e9e5c4a2f3b2ebb503605595f552f35e
            let lastTab = gBrowser.tabs[gBrowser.tabs.length - 1];
            if (!lastTab.closing) {
              // Report the stale tab as an error only when they're not closing.
-@@ -1248,12 +1248,6 @@ Tester.prototype = {
+@@ -1242,12 +1242,6 @@ Tester.prototype = {
      // test_end is logged, otherwise the new windows created by addTab will be
      // tracked by ShutdownLeaks as belonging to the test and cause false leak reports.
      if (window.gBrowser) {
diff --git a/src/toolkit/actors/PictureInPictureChild-sys-mjs.patch b/src/toolkit/actors/PictureInPictureChild-sys-mjs.patch
index 3bd878bbe..21521951b 100644
--- a/src/toolkit/actors/PictureInPictureChild-sys-mjs.patch
+++ b/src/toolkit/actors/PictureInPictureChild-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/toolkit/actors/PictureInPictureChild.sys.mjs b/toolkit/actors/PictureInPictureChild.sys.mjs
-index 4b42c43958989e9f67289537076a5683bdd08d55..a33a544647562c79af33ec9705fd60e36ec33488 100644
+index 49dd388d8304245e9e840cc32577eed45d36d62c..dde63be2eb6c442acb387b14bf05c18ce9419fa4 100644
 --- a/toolkit/actors/PictureInPictureChild.sys.mjs
 +++ b/toolkit/actors/PictureInPictureChild.sys.mjs
-@@ -297,6 +297,7 @@ export class PictureInPictureLauncherChild extends JSWindowActorChild {
+@@ -318,6 +318,7 @@ export class PictureInPictureLauncherChild extends JSWindowActorChild {
        if (
          video &&
          PictureInPictureChild.videoIsPlaying(video) &&
diff --git a/src/toolkit/components/extensions/parent/ext-runtime-js.patch b/src/toolkit/components/extensions/parent/ext-runtime-js.patch
index 4fa34d2cb..9dfd1bd86 100644
--- a/src/toolkit/components/extensions/parent/ext-runtime-js.patch
+++ b/src/toolkit/components/extensions/parent/ext-runtime-js.patch
@@ -1,8 +1,8 @@
 diff --git a/toolkit/components/extensions/parent/ext-runtime.js b/toolkit/components/extensions/parent/ext-runtime.js
-index 0d7a3e505b6bd30548c6dda1504dd343a517b083..fb6c6b4ef3eae24995a02f708ec41afd31d812ef 100644
+index 8278148b88861be48fa10b39f4cd05f5ceaaf53d..ef5c83eb555d9d4ac469afc4d8c7f0d9e7d11d51 100644
 --- a/toolkit/components/extensions/parent/ext-runtime.js
 +++ b/toolkit/components/extensions/parent/ext-runtime.js
-@@ -333,7 +333,7 @@ this.runtime = class extends ExtensionAPIPersistent {
+@@ -335,7 +335,7 @@ this.runtime = class extends ExtensionAPIPersistent {
  
          getBrowserInfo: function () {
            const { name, vendor, version, appBuildID } = Services.appinfo;
diff --git a/src/toolkit/components/extensions/parent/ext-tabs-base-js.patch b/src/toolkit/components/extensions/parent/ext-tabs-base-js.patch
index 33c176871..321144f23 100644
--- a/src/toolkit/components/extensions/parent/ext-tabs-base-js.patch
+++ b/src/toolkit/components/extensions/parent/ext-tabs-base-js.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/components/extensions/parent/ext-tabs-base.js b/toolkit/components/extensions/parent/ext-tabs-base.js
-index e617b47c547f633c95fe05023d2e748192c0b1b9..e12466e45d71376e975a127086a1ac5a57a38dd0 100644
+index 17321c22d36b3e44d32c1fe1cf35fbb94f8e4b91..c5f1dfb163fb64b29c2b0f70abe37d878cf8a625 100644
 --- a/toolkit/components/extensions/parent/ext-tabs-base.js
 +++ b/toolkit/components/extensions/parent/ext-tabs-base.js
 @@ -1966,6 +1966,7 @@ class TabManagerBase {
diff --git a/src/toolkit/components/pictureinpicture/PictureInPicture-sys-mjs.patch b/src/toolkit/components/pictureinpicture/PictureInPicture-sys-mjs.patch
index 35eef7a60..1a2c6f0ab 100644
--- a/src/toolkit/components/pictureinpicture/PictureInPicture-sys-mjs.patch
+++ b/src/toolkit/components/pictureinpicture/PictureInPicture-sys-mjs.patch
@@ -1,9 +1,9 @@
 diff --git a/toolkit/components/pictureinpicture/PictureInPicture.sys.mjs b/toolkit/components/pictureinpicture/PictureInPicture.sys.mjs
-index 098742100858b266aebc8f764f918c85815f3c5f..71b8f8d71d48229fc96d6c84c635d09012a82250 100644
+index e29503cef61f8a08134cb08b6a533cdc9107e725..186d366c71852ae2e04c0455ef769c81cce8c905 100644
 --- a/toolkit/components/pictureinpicture/PictureInPicture.sys.mjs
 +++ b/toolkit/components/pictureinpicture/PictureInPicture.sys.mjs
 @@ -122,6 +122,9 @@ export class PictureInPictureToggleParent extends JSWindowActorParent {
-         if (browser.ownerGlobal.gBrowser.selectedBrowser == browser) {
+         if (browser.documentGlobal.gBrowser.selectedBrowser == browser) {
            break;
          }
 +        if (browser.audioMuted) {
@@ -14,10 +14,10 @@ index 098742100858b266aebc8f764f918c85815f3c5f..71b8f8d71d48229fc96d6c84c635d090
          );
 @@ -493,7 +496,7 @@ export var PictureInPicture = {
      // focus the tab's window
-     tab.ownerGlobal.focus();
+     tab.documentGlobal.focus();
  
 -    gBrowser.selectedTab = tab;
-+    browser?.ownerGlobal?.gZenWorkspaces.switchIfNeeded(browser);
++    browser?.documentGlobal?.gZenWorkspaces.switchIfNeeded(browser);
      await this.closeSinglePipWindow({ reason: "Unpip", actorRef: pipActor });
    },
  
diff --git a/src/toolkit/content/widgets/browser-custom-element-mjs.patch b/src/toolkit/content/widgets/browser-custom-element-mjs.patch
index 0d571f1cb..216608de0 100644
--- a/src/toolkit/content/widgets/browser-custom-element-mjs.patch
+++ b/src/toolkit/content/widgets/browser-custom-element-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/content/widgets/browser-custom-element.mjs b/toolkit/content/widgets/browser-custom-element.mjs
-index 22fcec0368d0356a24dd125373cb767836a6760d..7a78f5c1ddb06f3bc1b1e76f7489d57ee17a28e9 100644
+index ddfd9d770b6f318e32b46c0630a0c27c982e1c63..c76bf85c5db16a60243f497c10402926b3bb0591 100644
 --- a/toolkit/content/widgets/browser-custom-element.mjs
 +++ b/toolkit/content/widgets/browser-custom-element.mjs
 @@ -504,11 +504,11 @@ export class MozBrowser extends MozElements.MozElementMixin(XULFrameElement) {
diff --git a/src/toolkit/content/widgets/findbar-js.patch b/src/toolkit/content/widgets/findbar-js.patch
index c0f26b7aa..bdfedf97d 100644
--- a/src/toolkit/content/widgets/findbar-js.patch
+++ b/src/toolkit/content/widgets/findbar-js.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/content/widgets/findbar.js b/toolkit/content/widgets/findbar.js
-index 89550d1700d4cb7e8bdef5e99ae4eb42b3ce3b16..b6d23961739b170d34f7a1bdc5f5c2e0ef005882 100644
+index ff9bb99e4ca481feb97d060e34eae37846ba55cf..6517111456d85d975d5857a044c642bdc1294be4 100644
 --- a/toolkit/content/widgets/findbar.js
 +++ b/toolkit/content/widgets/findbar.js
 @@ -1189,6 +1189,7 @@
diff --git a/src/toolkit/content/widgets/moz-toggle/moz-toggle-tokens-css.patch b/src/toolkit/content/widgets/moz-toggle/moz-toggle-tokens-css.patch
index d9df005cd..584d7759c 100644
--- a/src/toolkit/content/widgets/moz-toggle/moz-toggle-tokens-css.patch
+++ b/src/toolkit/content/widgets/moz-toggle/moz-toggle-tokens-css.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/content/widgets/moz-toggle/moz-toggle.tokens.css b/toolkit/content/widgets/moz-toggle/moz-toggle.tokens.css
-index 831de79a85ca1a65eee661cd1e6731a99c2631ad..12eb917352d0ac9492404503bcb66e161c5c5652 100644
+index 6247d7a3923a6fedd4ec9911aba309ce565cd498..744e670eccc936dde664aa07df3e87bdcafd5e48 100644
 --- a/toolkit/content/widgets/moz-toggle/moz-toggle.tokens.css
 +++ b/toolkit/content/widgets/moz-toggle/moz-toggle.tokens.css
 @@ -13,8 +13,8 @@
diff --git a/src/toolkit/content/widgets/panel-js.patch b/src/toolkit/content/widgets/panel-js.patch
index 7f8a17364..e7bfb137b 100644
--- a/src/toolkit/content/widgets/panel-js.patch
+++ b/src/toolkit/content/widgets/panel-js.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/content/widgets/panel.js b/toolkit/content/widgets/panel.js
-index dc3e34847f1b6dfd58f5e036fd7d714ef51c1380..20f18fcb1a2f637d83366b8a517d43200270739f 100644
+index dc3e34847f1b6dfd58f5e036fd7d714ef51c1380..243c5b8c849342dd2e887242d4c8499915ee51c2 100644
 --- a/toolkit/content/widgets/panel.js
 +++ b/toolkit/content/widgets/panel.js
 @@ -136,7 +136,19 @@
@@ -7,11 +7,11 @@ index dc3e34847f1b6dfd58f5e036fd7d714ef51c1380..20f18fcb1a2f637d83366b8a517d4320
              this.anchorNode.closest("toolbarbutton, .anchor-root") ||
              this.anchorNode;
 +          let toolbox = anchorRoot.closest("#navigator-toolbox");
-+          if (toolbox && toolbox.ownerGlobal.gZenCompactModeManager?.preference) {
++          if (toolbox && toolbox.documentGlobal.gZenCompactModeManager?.preference) {
 +            // Disable transitions for now, see gh-11667
 +            toolbox.style.transition = "none";
 +            toolbox.setAttribute("zen-compact-mode-active", "true");
-+            anchorRoot.ownerGlobal.setTimeout(() => {
++            anchorRoot.documentGlobal.setTimeout(() => {
 +              toolbox.style.transition = "";
 +            }, 0);
 +          }
diff --git a/src/toolkit/content/widgets/tabbox-js.patch b/src/toolkit/content/widgets/tabbox-js.patch
index d7ae6be59..40f876dc8 100644
--- a/src/toolkit/content/widgets/tabbox-js.patch
+++ b/src/toolkit/content/widgets/tabbox-js.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/content/widgets/tabbox.js b/toolkit/content/widgets/tabbox.js
-index de0a7817fe0d9d3b48a713c00f5bc1e7a367781b..09d8df42f92548fb1c32c8e9316cb43ed72cdfeb 100644
+index 9334120e818b609c6cb6792fd509e90c9b362551..2dde0c8698eb75bac0d0eb4d800d11b577e10a46 100644
 --- a/toolkit/content/widgets/tabbox.js
 +++ b/toolkit/content/widgets/tabbox.js
 @@ -11,6 +11,23 @@
@@ -35,7 +35,7 @@ index de0a7817fe0d9d3b48a713c00f5bc1e7a367781b..09d8df42f92548fb1c32c8e9316cb43e
          this._selectedPanel?.classList.add("deck-selected");
        }
        this.setAttribute("selectedIndex", val);
-@@ -908,7 +925,7 @@
+@@ -924,7 +941,7 @@
        if (!tab) {
          return;
        }
@@ -44,7 +44,7 @@ index de0a7817fe0d9d3b48a713c00f5bc1e7a367781b..09d8df42f92548fb1c32c8e9316cb43e
          if (otherTab != tab && otherTab.selected) {
            otherTab._selected = false;
          }
-@@ -944,6 +961,7 @@
+@@ -960,6 +977,7 @@
       * @param {MozTab|null} [val]
       */
      set selectedItem(val) {
@@ -52,7 +52,7 @@ index de0a7817fe0d9d3b48a713c00f5bc1e7a367781b..09d8df42f92548fb1c32c8e9316cb43e
        if (val && !val.selected) {
          // The selectedIndex setter ignores invalid values
          // such as -1 if |val| isn't one of our child nodes.
-@@ -1121,7 +1139,7 @@
+@@ -1137,7 +1155,7 @@
          if (tab == startTab) {
            return null;
          }
@@ -61,7 +61,7 @@ index de0a7817fe0d9d3b48a713c00f5bc1e7a367781b..09d8df42f92548fb1c32c8e9316cb43e
            return tab;
          }
        }
-@@ -1183,13 +1201,30 @@
+@@ -1199,13 +1217,30 @@
       * @param {boolean} [aWrap]
       */
      advanceSelectedTab(aDir, aWrap) {
@@ -93,7 +93,7 @@ index de0a7817fe0d9d3b48a713c00f5bc1e7a367781b..09d8df42f92548fb1c32c8e9316cb43e
        // Handle keyboard navigation for a hidden tab that can be selected, like the Firefox View tab,
        // which has a random placement in this.allTabs.
        if (startTab.hidden) {
-@@ -1202,7 +1237,7 @@
+@@ -1218,7 +1253,7 @@
          newTab = this.findNextTab(startTab, {
            direction: aDir,
            wrap: aWrap,
diff --git a/src/toolkit/modules/AppConstants-sys-mjs.patch b/src/toolkit/modules/AppConstants-sys-mjs.patch
index b5d155644..c26288f1f 100644
--- a/src/toolkit/modules/AppConstants-sys-mjs.patch
+++ b/src/toolkit/modules/AppConstants-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/modules/AppConstants.sys.mjs b/toolkit/modules/AppConstants.sys.mjs
-index 13a523a989d1326b0f8faef9bac299738885e655..c2ff014dc553856161f6aec8014a27165819364b 100644
+index a26725ead2f74aaf6a7550e9251662c5202e1d16..891c1cb31614dad31cfb2ec2aadd3f8cdb13852a 100644
 --- a/toolkit/modules/AppConstants.sys.mjs
 +++ b/toolkit/modules/AppConstants.sys.mjs
 @@ -175,6 +175,8 @@ export var AppConstants = Object.freeze({
diff --git a/src/toolkit/modules/LightweightThemeConsumer-sys-mjs.patch b/src/toolkit/modules/LightweightThemeConsumer-sys-mjs.patch
index dd7c9dc84..24e3bc26f 100644
--- a/src/toolkit/modules/LightweightThemeConsumer-sys-mjs.patch
+++ b/src/toolkit/modules/LightweightThemeConsumer-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/modules/LightweightThemeConsumer.sys.mjs b/toolkit/modules/LightweightThemeConsumer.sys.mjs
-index f26f2ad7a4010f4aac77626da3a47c4ebe87f910..1456f5d7d20b40cd4b3cc9f89563cfd7c880c63c 100644
+index 756cf47d4dd5e096af96a95ab63c20ac9348572b..a74c1ffd73c19ee54ed87318d97898d93b974ea7 100644
 --- a/toolkit/modules/LightweightThemeConsumer.sys.mjs
 +++ b/toolkit/modules/LightweightThemeConsumer.sys.mjs
 @@ -34,7 +34,7 @@ const toolkitVariableMap = [
diff --git a/src/toolkit/modules/PopupNotifications-sys-mjs.patch b/src/toolkit/modules/PopupNotifications-sys-mjs.patch
index f5c9006ab..a4e2fe0f5 100644
--- a/src/toolkit/modules/PopupNotifications-sys-mjs.patch
+++ b/src/toolkit/modules/PopupNotifications-sys-mjs.patch
@@ -1,8 +1,8 @@
 diff --git a/toolkit/modules/PopupNotifications.sys.mjs b/toolkit/modules/PopupNotifications.sys.mjs
-index a53369760ced2df3d2d9682142d94dfc7deda71c..8755f15ea82f6a7addcf91b62b1b3e7b1e20bce6 100644
+index 5e88f279e570edbf95823bb9dc9835bae89feb32..f50db584dff740583665239d2cc2c5d00c5010e9 100644
 --- a/toolkit/modules/PopupNotifications.sys.mjs
 +++ b/toolkit/modules/PopupNotifications.sys.mjs
-@@ -1526,6 +1526,15 @@ PopupNotifications.prototype = {
+@@ -1532,6 +1532,15 @@ PopupNotifications.prototype = {
    ) {
      for (let anchorElement of anchorElements) {
        anchorElement.setAttribute(ICON_ATTRIBUTE_SHOWING, "true");
@@ -11,7 +11,7 @@ index a53369760ced2df3d2d9682142d94dfc7deda71c..8755f15ea82f6a7addcf91b62b1b3e7b
 +        // Disable transitions for now, see gh-11667
 +        toolbox.style.transition = "none";
 +        toolbox.setAttribute("zen-compact-mode-active", "true");
-+        anchorElement.ownerGlobal.setTimeout(() => {
++        anchorElement.documentGlobal.setTimeout(() => {
 +          toolbox.style.transition = "";
 +        }, 0);
 +      }
diff --git a/src/toolkit/modules/moz-build.patch b/src/toolkit/modules/moz-build.patch
index e93907e15..38aaf0344 100644
--- a/src/toolkit/modules/moz-build.patch
+++ b/src/toolkit/modules/moz-build.patch
@@ -1,8 +1,8 @@
 diff --git a/toolkit/modules/moz.build b/toolkit/modules/moz.build
-index 161be731ed701c598b757efbc23f90dbd193b4b2..ede01c5f1ebb46559947f648082d7ffc664fca09 100644
+index 71290eebecf1c67196baf78dc0bae2e0f7ea5e2c..cdbdae60c67c66147d076b14ccfb570f9537a638 100644
 --- a/toolkit/modules/moz.build
 +++ b/toolkit/modules/moz.build
-@@ -289,6 +289,7 @@ for var in (
+@@ -291,6 +291,7 @@ for var in (
      "DLL_SUFFIX",
      "DEBUG_JS_MODULES",
      "OMNIJAR_NAME",
diff --git a/src/toolkit/moz-configure.patch b/src/toolkit/moz-configure.patch
index 48f198e0c..653e473fe 100644
--- a/src/toolkit/moz-configure.patch
+++ b/src/toolkit/moz-configure.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/moz.configure b/toolkit/moz.configure
-index 0f5dab192533aa42df97ee3bd4176a9f44d4d568..d45ad2409f6d36106fce5a380545aaae9397ae84 100644
+index 75e99bbd2490b9014be6f4e956546d4507e751df..fbe16d282113175f067d739e1284b2544d014e7d 100644
 --- a/toolkit/moz.configure
 +++ b/toolkit/moz.configure
 @@ -20,6 +20,7 @@ def check_moz_app_id(moz_app_id, build_project):
@@ -33,20 +33,7 @@ index 0f5dab192533aa42df97ee3bd4176a9f44d4d568..d45ad2409f6d36106fce5a380545aaae
      help="Set distribution-specific id",
  )
  set_config("MOZ_DISTRIBUTION_ID", depends("--with-distribution-id")(lambda v: v[0]))
-@@ -874,9 +879,9 @@ set_config("MOZ_SYSTEM_AV1", True, when="--with-system-av1")
- option("--disable-jxl", help="Disable jxl image support")
- 
- 
--@depends("--disable-jxl", milestone.is_nightly)
--def jxl(value, is_nightly):
--    if is_nightly and value:
-+@depends("--disable-jxl")
-+def jxl(value):
-+    if value:
-         return True
- 
- 
-@@ -2028,7 +2033,7 @@ set_define("A11Y_LOG", True, when=a11y_log)
+@@ -2032,7 +2037,7 @@ set_define("A11Y_LOG", True, when=a11y_log)
  # ==============================================================
  @depends(milestone)
  def require_signing(milestone):
@@ -55,7 +42,7 @@ index 0f5dab192533aa42df97ee3bd4176a9f44d4d568..d45ad2409f6d36106fce5a380545aaae
  
  
  option(
-@@ -3912,7 +3917,7 @@ with only_when(compile_environment):
+@@ -3916,7 +3921,7 @@ with only_when(compile_environment):
              return "Mozilla"
          elif target.os == "Android":
              return ".mozilla"
@@ -64,7 +51,7 @@ index 0f5dab192533aa42df97ee3bd4176a9f44d4d568..d45ad2409f6d36106fce5a380545aaae
  
      option(
          "--with-user-appdir",
-@@ -4325,7 +4330,7 @@ with only_when(target_is_windows):
+@@ -4329,7 +4334,7 @@ with only_when(target_is_windows):
  
      @depends(target.abi)
      def desktop_launcher_enabled(abi):
diff --git a/src/toolkit/mozapps/extensions/AddonManager-sys-mjs.patch b/src/toolkit/mozapps/extensions/AddonManager-sys-mjs.patch
index 0f6166b95..2fac8284c 100644
--- a/src/toolkit/mozapps/extensions/AddonManager-sys-mjs.patch
+++ b/src/toolkit/mozapps/extensions/AddonManager-sys-mjs.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/mozapps/extensions/AddonManager.sys.mjs b/toolkit/mozapps/extensions/AddonManager.sys.mjs
-index dc1a6f7e1e7fc3cb37fdf783db425793afe04f52..512749ee8c2a2ff4e099eb91ddb2d40fb1d361c2 100644
+index 06539de2cd61fca60e4e78a659650b00a1309317..e5077e4eb14bf23df3aba032621df75631b2a533 100644
 --- a/toolkit/mozapps/extensions/AddonManager.sys.mjs
 +++ b/toolkit/mozapps/extensions/AddonManager.sys.mjs
 @@ -1282,12 +1282,12 @@ var AddonManagerInternal = {
diff --git a/src/toolkit/profile/nsToolkitProfileService-cpp.patch b/src/toolkit/profile/nsToolkitProfileService-cpp.patch
index b82ab8c93..f0b2782e1 100644
--- a/src/toolkit/profile/nsToolkitProfileService-cpp.patch
+++ b/src/toolkit/profile/nsToolkitProfileService-cpp.patch
@@ -1,17 +1,17 @@
 diff --git a/toolkit/profile/nsToolkitProfileService.cpp b/toolkit/profile/nsToolkitProfileService.cpp
-index df573b68c781a91763bb60ff63a248cea7a1c5af..f7b68fb5bc5ca22bdaf768a3afe2eb3eae568bc0 100644
+index f624b97e480cdeae8e7621060b33c7ab872c4523..2fc8240543ef391f43ca6a02d169302488d738cc 100644
 --- a/toolkit/profile/nsToolkitProfileService.cpp
 +++ b/toolkit/profile/nsToolkitProfileService.cpp
-@@ -97,6 +97,8 @@ using namespace mozilla;
- #define INSTALL_PREFIX_LENGTH 7
+@@ -101,6 +101,8 @@ using namespace mozilla;
  #define STORE_ID_PREF "toolkit.profiles.storeID"
+ #define NEW_PROFILE_PREF "toolkit.profiles.newProfileSubmitted"
  
 +#include "zenToolkitProfileServiceDefaultOverride.h"
 +
  struct KeyValue {
    KeyValue(const char* aKey, const char* aValue) : key(aKey), value(aValue) {}
  
-@@ -1418,7 +1420,7 @@ nsresult nsToolkitProfileService::CreateDefaultProfile(
+@@ -1482,7 +1484,7 @@ nsresult nsToolkitProfileService::CreateDefaultProfile(
    if (mUseDevEditionProfile) {
      name.AssignLiteral(DEV_EDITION_NAME);
    } else if (mUseDedicatedProfile) {
diff --git a/src/toolkit/themes/shared/design-system/dist/tokens-shared-css.patch b/src/toolkit/themes/shared/design-system/dist/tokens-shared-css.patch
index 7220ae5c7..280ba70ce 100644
--- a/src/toolkit/themes/shared/design-system/dist/tokens-shared-css.patch
+++ b/src/toolkit/themes/shared/design-system/dist/tokens-shared-css.patch
@@ -1,13 +1,24 @@
 diff --git a/toolkit/themes/shared/design-system/dist/tokens-shared.css b/toolkit/themes/shared/design-system/dist/tokens-shared.css
-index 452f3731fbca42a3529ab14421ef1c2c453b6c01..66791a5b6b074bccb02905053f043cc054b6bd57 100644
+index 94afbe630914eef375967f2eff310d69c61fa1aa..04b42529d43c5100a76c883220875c0b70ad0616 100644
 --- a/toolkit/themes/shared/design-system/dist/tokens-shared.css
 +++ b/toolkit/themes/shared/design-system/dist/tokens-shared.css
 @@ -7,6 +7,8 @@
  
- @layer tokens-foundation, tokens-foundation-nova, tokens-prefers-contrast, tokens-prefers-contrast-nova, tokens-forced-colors, tokens-forced-colors-nova;
+ @layer tokens-foundation, tokens-foundation-nova, tokens-prefers-contrast, tokens-prefers-contrast-nova, tokens-forced-colors, tokens-forced-colors-nova, tokens-browser-theme, tokens-browser-theme-nova;
  
 +@import url("chrome://browser/content/zen-styles/zen-theme.css");
 +
  @layer tokens-foundation {
    :root,
    :host(.anonymous-content-host) {
+@@ -368,8 +370,8 @@
+     --panel-background-color-dimmed-further: color-mix(in srgb, currentColor 30%, transparent);
+     --panel-border-color: ThreeDShadow;
+     --panel-border-radius: var(--border-radius-medium);
+-    --panel-box-shadow: 0 0 var(--panel-box-shadow-margin) hsla(0, 0%, 0%, 0.2);
+-    --panel-box-shadow-margin: 4px;
++    --panel-box-shadow: var(--zen-big-shadow);
++    --panel-box-shadow-margin: 8px;
+     --panel-menuitem-border-radius: var(--border-radius-small);
+     --panel-menuitem-margin: var(--panel-menuitem-margin-block) var(--panel-menuitem-margin-inline);
+     --panel-menuitem-margin-block: 0px;
diff --git a/src/toolkit/themes/shared/design-system/src/panel-css.patch b/src/toolkit/themes/shared/design-system/src/panel-css.patch
deleted file mode 100644
index 9593afb73..000000000
--- a/src/toolkit/themes/shared/design-system/src/panel-css.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-diff --git a/toolkit/themes/shared/design-system/src/panel.css b/toolkit/themes/shared/design-system/src/panel.css
-index 92a6b4b23aee7d880bee21a5e843653444e3fc32..2d0a73d338b4e4d5a0f98b8e3c00134a823c223c 100644
---- a/toolkit/themes/shared/design-system/src/panel.css
-+++ b/toolkit/themes/shared/design-system/src/panel.css
-@@ -10,8 +10,8 @@
-   --panel-color: FieldText;
-   --panel-padding-block: var(--dimension-4);
-   --panel-padding: var(--dimension-16);
--  --panel-shadow-margin: var(--dimension-4);
--  --panel-shadow: 0 0 var(--panel-shadow-margin) hsla(0, 0%, 0%, 0.2);
-+  --panel-shadow-margin: 8px;
-+  --panel-shadow: var(--zen-big-shadow);
-   --panel-width: initial;
-   --panel-dimmed: color-mix(in srgb, currentColor 17%, transparent);
-   --panel-dimmed-further: color-mix(in srgb, currentColor 30%, transparent);
diff --git a/src/toolkit/themes/shared/design-system/src/toolbar-css.patch b/src/toolkit/themes/shared/design-system/src/toolbar-css.patch
index 6a3c8765b..bfe95d002 100644
--- a/src/toolkit/themes/shared/design-system/src/toolbar-css.patch
+++ b/src/toolkit/themes/shared/design-system/src/toolbar-css.patch
@@ -1,12 +1,12 @@
 diff --git a/toolkit/themes/shared/design-system/src/toolbar.css b/toolkit/themes/shared/design-system/src/toolbar.css
-index 61667b3f778a66b74aa7b169cd646a8437a5dd42..d1a9e5ad121a44f182e7061a21f4bbe9540cae8c 100644
+index b5e0d34222312ec568d027725489ac8beee41dbe..c6fc389fbf4b3864f391b197c33ebd616bfc3b3c 100644
 --- a/toolkit/themes/shared/design-system/src/toolbar.css
 +++ b/toolkit/themes/shared/design-system/src/toolbar.css
-@@ -61,7 +61,6 @@
-     --toolbar-field-color: inherit;
- 
-     @media (prefers-color-scheme: light) {
--      --toolbar-bgcolor: var(--color-white);
+@@ -9,7 +9,6 @@
+   :root {
+     @media not (prefers-contrast) {
+       @media (prefers-color-scheme: light) {
+-        --toolbar-background-color: var(--color-white);
+       }
      }
    }
- 
diff --git a/src/toolkit/themes/shared/in-content/common-shared-css.patch b/src/toolkit/themes/shared/in-content/common-shared-css.patch
index c8393e16c..5d60ff2e8 100644
--- a/src/toolkit/themes/shared/in-content/common-shared-css.patch
+++ b/src/toolkit/themes/shared/in-content/common-shared-css.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/themes/shared/in-content/common-shared.css b/toolkit/themes/shared/in-content/common-shared.css
-index 37c30173e5670f4ed0a557c6118c8e8cab53026f..cb9deb4386fe7dda6672df5fd7d51277f2d638dc 100644
+index 8cbeb5d266b19c2c5b3d605b23c8c421a03c2a0e..7db0baeee11b99a5da1c143c682e38751a9ac03c 100644
 --- a/toolkit/themes/shared/in-content/common-shared.css
 +++ b/toolkit/themes/shared/in-content/common-shared.css
 @@ -57,7 +57,7 @@
diff --git a/src/toolkit/xre/nsXREDirProvider-cpp.patch b/src/toolkit/xre/nsXREDirProvider-cpp.patch
index f138d45da..963848a85 100644
--- a/src/toolkit/xre/nsXREDirProvider-cpp.patch
+++ b/src/toolkit/xre/nsXREDirProvider-cpp.patch
@@ -1,8 +1,8 @@
 diff --git a/toolkit/xre/nsXREDirProvider.cpp b/toolkit/xre/nsXREDirProvider.cpp
-index 43dafeaceded7ec06e283ef602cab9f0d11bfe2a..8b0f4980650f23a0d2cff79d387ca2c75018187b 100644
+index b54980f967ab8fe9b9c13bbad8fae6323ec84f1f..f1a5481fb3bd44c1f8f6e40f4163aa7842623325 100644
 --- a/toolkit/xre/nsXREDirProvider.cpp
 +++ b/toolkit/xre/nsXREDirProvider.cpp
-@@ -1341,9 +1341,11 @@ nsresult nsXREDirProvider::AppendFromAppData(nsIFile* aFile, bool aIsDotted) {
+@@ -1333,9 +1333,11 @@ nsresult nsXREDirProvider::AppendFromAppData(nsIFile* aFile, bool aIsDotted) {
    // Similar to nsXREDirProvider::AppendProfilePath.
    // TODO: Bug 1990407 - Evaluate if refactoring might be required there in the
    // future?
@@ -15,7 +15,7 @@ index 43dafeaceded7ec06e283ef602cab9f0d11bfe2a..8b0f4980650f23a0d2cff79d387ca2c7
      MOZ_TRY(aFile->AppendRelativeNativePath(profile));
    } else {
      nsAutoCString vendor;
-@@ -1353,8 +1355,6 @@ nsresult nsXREDirProvider::AppendFromAppData(nsIFile* aFile, bool aIsDotted) {
+@@ -1345,8 +1347,6 @@ nsresult nsXREDirProvider::AppendFromAppData(nsIFile* aFile, bool aIsDotted) {
      ToLowerCase(vendor);
      ToLowerCase(appName);
  
@@ -24,7 +24,7 @@ index 43dafeaceded7ec06e283ef602cab9f0d11bfe2a..8b0f4980650f23a0d2cff79d387ca2c7
      MOZ_TRY(aFile->AppendRelativeNativePath(appName));
    }
  
-@@ -1522,13 +1522,8 @@ nsresult nsXREDirProvider::GetLegacyOrXDGHomePath(const char* aHomeDir,
+@@ -1514,13 +1514,8 @@ nsresult nsXREDirProvider::GetLegacyOrXDGHomePath(const char* aHomeDir,
  
      // If the build was made against a specific profile name, MOZ_APP_PROFILE=
      // then make sure we respect this and dont move to XDG directory
diff --git a/src/tools/lint/rejected-words-yml.patch b/src/tools/lint/rejected-words-yml.patch
index 0cb5dbe4a..83abddee4 100644
--- a/src/tools/lint/rejected-words-yml.patch
+++ b/src/tools/lint/rejected-words-yml.patch
@@ -1,9 +1,9 @@
 diff --git a/tools/lint/rejected-words.yml b/tools/lint/rejected-words.yml
-index 3eb549d252c9f5f7b5cbcf72ca1480025794b481..1a065643971f1048e9598b3c389f51e199eba63d 100644
+index eae20774aaf1001a8fd06dbfe13dca13979db4ad..dd4786dcb8ea1ca4d2115a775bd1e940d2ccd725 100644
 --- a/tools/lint/rejected-words.yml
 +++ b/tools/lint/rejected-words.yml
-@@ -8,7 +8,6 @@ avoid-blacklist-and-whitelist:
-     ignore-case: true
+@@ -13,7 +13,6 @@ avoid-blacklist-and-whitelist:
+         - 'tools/lint/mozcheck/**'
      # Based on codespell with idl and webidl added.
      extensions:
 -        - js
diff --git a/src/tools/signing/macos/mach_commands-py.patch b/src/tools/signing/macos/mach_commands-py.patch
index a1e3de73b..8b73cce7b 100644
--- a/src/tools/signing/macos/mach_commands-py.patch
+++ b/src/tools/signing/macos/mach_commands-py.patch
@@ -1,5 +1,5 @@
 diff --git a/tools/signing/macos/mach_commands.py b/tools/signing/macos/mach_commands.py
-index c7ef5496daa36d77dbe11da7d30f3258e54f4936..6a28dc5233c88b866a9db212ded43ad86d63c1d7 100644
+index 319a9c9c37638d8114a94cde1c02e84d9aea916a..bd8301eacc5d37df2bef0850836f08dd996ca32e 100644
 --- a/tools/signing/macos/mach_commands.py
 +++ b/tools/signing/macos/mach_commands.py
 @@ -37,7 +37,6 @@ from mozbuild.base import MachCommandConditions as conditions
@@ -21,7 +21,7 @@ index c7ef5496daa36d77dbe11da7d30f3258e54f4936..6a28dc5233c88b866a9db212ded43ad8
      if use_rcodesign_arg is True:
          sign_with_rcodesign(
              command_context,
-@@ -630,7 +633,7 @@ def sign_with_rcodesign(
+@@ -637,7 +640,7 @@ def sign_with_rcodesign(
      # input path and its options are specified as standard arguments.
      ctx.log(logging.INFO, "macos-sign", {}, "Signing with rcodesign")
  
diff --git a/src/widget/cocoa/VibrancyManager-mm.patch b/src/widget/cocoa/VibrancyManager-mm.patch
index a4f7c5c33..00ea2b670 100644
--- a/src/widget/cocoa/VibrancyManager-mm.patch
+++ b/src/widget/cocoa/VibrancyManager-mm.patch
@@ -45,7 +45,7 @@ index 5df70a63afb235d2db11712276bb63f756222a0f..a2865aa2748433cbfd956ae46d197200
      case VibrancyType::Titlebar:
        return NSVisualEffectMaterialTitlebar;
    }
-@@ -76,6 +96,7 @@ static NSVisualEffectBlendingMode VisualEffectBlendingModeForVibrancyType(
+@@ -76,6 +96,7 @@ - (NSView*)hitTest:(NSPoint)aPoint {
  
  - (void)prefChanged {
    self.blendingMode = VisualEffectBlendingModeForVibrancyType(mType);
diff --git a/src/widget/cocoa/nsCocoaUtils-mm.patch b/src/widget/cocoa/nsCocoaUtils-mm.patch
index db511042d..6dc5e8e40 100644
--- a/src/widget/cocoa/nsCocoaUtils-mm.patch
+++ b/src/widget/cocoa/nsCocoaUtils-mm.patch
@@ -1,8 +1,8 @@
 diff --git a/widget/cocoa/nsCocoaUtils.mm b/widget/cocoa/nsCocoaUtils.mm
-index 49cb2b2d6960cbb0b6a8a17c409cfc909072213d..2406d1b576d1bfd38add149522c64281b9a20889 100644
+index 0c33b8916a4375ee43406d3be347504ef06148e2..51e8c46de07e78ccdd02c0a84a17448dd9f690f9 100644
 --- a/widget/cocoa/nsCocoaUtils.mm
 +++ b/widget/cocoa/nsCocoaUtils.mm
-@@ -1630,7 +1630,8 @@ bool static ShouldConsiderStartingSwipeFromEvent(NSEvent* anEvent) {
+@@ -1543,7 +1543,8 @@ bool static ShouldConsiderStartingSwipeFromEvent(NSEvent* anEvent) {
    return [anEvent type] == NSEventTypeScrollWheel &&
           eventPhase == NSEventPhaseBegan &&
           [anEvent hasPreciseScrollingDeltas] &&
diff --git a/src/widget/cocoa/nsDragService-mm.patch b/src/widget/cocoa/nsDragService-mm.patch
index 67596f852..8109f2625 100644
--- a/src/widget/cocoa/nsDragService-mm.patch
+++ b/src/widget/cocoa/nsDragService-mm.patch
@@ -1,5 +1,5 @@
 diff --git a/widget/cocoa/nsDragService.mm b/widget/cocoa/nsDragService.mm
-index 3b61c3a0d500e14e78d9009c821b47e70926cc97..b4cbc6e0dc0d43a55f074d4908dd414b859e16ed 100644
+index 81fe6f749c1d046141003ad2413605b4d4acf9ed..f26c2556657ad683dad3fa712feca5965343175d 100644
 --- a/widget/cocoa/nsDragService.mm
 +++ b/widget/cocoa/nsDragService.mm
 @@ -22,6 +22,7 @@
@@ -10,7 +10,7 @@ index 3b61c3a0d500e14e78d9009c821b47e70926cc97..b4cbc6e0dc0d43a55f074d4908dd414b
  #include "nsIContent.h"
  #include "nsCocoaUtils.h"
  #include "mozilla/gfx/2D.h"
-@@ -146,6 +147,10 @@ NSImage* nsDragSession::ConstructDragImage(nsINode* aDOMNode,
+@@ -146,6 +147,10 @@
                                              bitsPerPixel:32];
  
    uint8_t* dest = [imageRep bitmapData];
@@ -21,7 +21,7 @@ index 3b61c3a0d500e14e78d9009c821b47e70926cc97..b4cbc6e0dc0d43a55f074d4908dd414b
    for (uint32_t i = 0; i < height; ++i) {
      uint8_t* src = map.mData + i * map.mStride;
      for (uint32_t j = 0; j < width; ++j) {
-@@ -153,15 +158,15 @@ NSImage* nsDragSession::ConstructDragImage(nsINode* aDOMNode,
+@@ -153,15 +158,15 @@
        // is premultipled here. Also, Quartz likes RGBA, so do that translation
        // as well.
  #ifdef IS_BIG_ENDIAN
diff --git a/src/xpfe/appshell/AppWindow-cpp.patch b/src/xpfe/appshell/AppWindow-cpp.patch
index a3b335610..e675cbf39 100644
--- a/src/xpfe/appshell/AppWindow-cpp.patch
+++ b/src/xpfe/appshell/AppWindow-cpp.patch
@@ -1,5 +1,5 @@
 diff --git a/xpfe/appshell/AppWindow.cpp b/xpfe/appshell/AppWindow.cpp
-index d980bca7b42bb8d81817756215067771d2793bfe..94992e9d96348e4c88e089e4cdc3234076efb656 100644
+index 6b218ca7d704bcaffd16d741acb0e1d1f0a0cebb..ccd8a98827219fc8ba4ad9f226e81bae53b30836 100644
 --- a/xpfe/appshell/AppWindow.cpp
 +++ b/xpfe/appshell/AppWindow.cpp
 @@ -1847,7 +1847,7 @@ nsresult AppWindow::MaybeSaveEarlyWindowPersistentValues(
diff --git a/src/zen/boosts/ZenSelectorComponent.sys.mjs b/src/zen/boosts/ZenSelectorComponent.sys.mjs
index 5a39409a1..0a9de26cb 100644
--- a/src/zen/boosts/ZenSelectorComponent.sys.mjs
+++ b/src/zen/boosts/ZenSelectorComponent.sys.mjs
@@ -50,7 +50,7 @@ export class SelectorComponent {
     localizationArray = null
   ) {
     this.document = document;
-    this.window = document.ownerGlobal;
+    this.window = document.documentGlobal;
     this.zenBoostsChild = zenBoostsChild;
     this.#onSelect = onSelect;
 
diff --git a/src/zen/boosts/ZenZapDissolve.sys.mjs b/src/zen/boosts/ZenZapDissolve.sys.mjs
index ab1276346..32c14c1ee 100644
--- a/src/zen/boosts/ZenZapDissolve.sys.mjs
+++ b/src/zen/boosts/ZenZapDissolve.sys.mjs
@@ -164,7 +164,7 @@ void main() {
       return;
     }
     this.document = document;
-    this.window = document.ownerGlobal;
+    this.window = document.documentGlobal;
   }
 
   /**
diff --git a/src/zen/boosts/ZenZapOverlayChild.sys.mjs b/src/zen/boosts/ZenZapOverlayChild.sys.mjs
index 7b8b4ed35..c00ae8e34 100644
--- a/src/zen/boosts/ZenZapOverlayChild.sys.mjs
+++ b/src/zen/boosts/ZenZapOverlayChild.sys.mjs
@@ -34,7 +34,7 @@ export class ZapOverlay {
    */
   constructor(document, zenBoostsChild) {
     this.document = document;
-    this.window = document.ownerGlobal;
+    this.window = document.documentGlobal;
     this.zenBoostsChild = zenBoostsChild;
 
     this.#selectorComponent = new lazy.SelectorComponent(
diff --git a/src/zen/common/modules/ZenUIManager.mjs b/src/zen/common/modules/ZenUIManager.mjs
index 4553c5bb6..88d764a29 100644
--- a/src/zen/common/modules/ZenUIManager.mjs
+++ b/src/zen/common/modules/ZenUIManager.mjs
@@ -299,12 +299,9 @@ window.gZenUIManager = {
   },
 
   openAndChangeToTab(url, options) {
-    if (window.ownerGlobal.parent) {
-      const tab = window.ownerGlobal.parent.gBrowser.addTrustedTab(
-        url,
-        options
-      );
-      window.ownerGlobal.parent.gBrowser.selectedTab = tab;
+    if (window.parent) {
+      const tab = window.parent.gBrowser.addTrustedTab(url, options);
+      window.parent.gBrowser.selectedTab = tab;
       return tab;
     }
     const tab = window.gBrowser.addTrustedTab(url, options);
@@ -616,8 +613,8 @@ window.gZenUIManager = {
       if (
         this._lastTab &&
         !this._lastTab.closing &&
-        this._lastTab.ownerGlobal &&
-        !this._lastTab.ownerGlobal.closed &&
+        this._lastTab.documentGlobal &&
+        !this._lastTab.documentGlobal.closed &&
         gBrowser.selectedTab === this._lastTab
       ) {
         this._lastTab._visuallySelected = true;
diff --git a/src/zen/common/styles/zen-omnibox.css b/src/zen/common/styles/zen-omnibox.css
index 2e9b3b793..3770fb353 100644
--- a/src/zen/common/styles/zen-omnibox.css
+++ b/src/zen/common/styles/zen-omnibox.css
@@ -442,7 +442,7 @@
    * available space as much as possible, see bug 1795260. */
   min-width: 0;
 
-  --toolbarbutton-inner-padding: var(--zen-toolbar-button-inner-padding);
+  --toolbarbutton-padding-inner: var(--zen-toolbar-button-inner-padding);
 
   /* Add space to beginning of toolbar and make that space click the first <toolbarbutton> */
   > :is(toolbarbutton, toolbaritem):first-child,
diff --git a/src/zen/common/styles/zen-panel-ui.css b/src/zen/common/styles/zen-panel-ui.css
index 133085bf0..c4be12a55 100644
--- a/src/zen/common/styles/zen-panel-ui.css
+++ b/src/zen/common/styles/zen-panel-ui.css
@@ -15,7 +15,7 @@ panel[type="arrow"]:not(#feature-callout) {
 
     /* The mica rendering already adds a shadow and a border, so we
      * remove the one we add via CSS */
-    --panel-shadow-margin: 0px !important;
+    --panel-box-shadow-margin: 0px !important;
     --panel-border-color: transparent !important;
     border: none !important;
 
@@ -30,7 +30,7 @@ panel[type="arrow"]:not(#feature-callout) {
   }
 
   @media (-moz-platform: macos) {
-    &:where([nonnativepopover="true"], :not([type="arrow"])) {
+    &:is([nonnative], :not([type="arrow"])) {
       appearance: auto !important;
       -moz-default-appearance: menupopup;
       /* We set the default background here, rather than on ::part(content),
@@ -39,7 +39,7 @@ panel[type="arrow"]:not(#feature-callout) {
       background-color: Menu !important;
     }
 
-    --panel-shadow-margin: 0px !important;
+    --panel-box-shadow-margin: 0px !important;
     --panel-background: transparent !important;
     --panel-border-color: transparent;
 
@@ -48,7 +48,7 @@ panel[type="arrow"]:not(#feature-callout) {
      * on Tahoe, where we *don't* apply an image mask, meaning that
      * trying to render a shadow would end up in having weird borders
      * around the panel */
-    --panel-shadow: none;
+    --panel-box-shadow: none;
 
     &::part(content) {
       /* This shoudn't really be needed, but just in case */
diff --git a/src/zen/common/styles/zen-popup.css b/src/zen/common/styles/zen-popup.css
index 68c64b713..e3b2dffce 100644
--- a/src/zen/common/styles/zen-popup.css
+++ b/src/zen/common/styles/zen-popup.css
@@ -35,7 +35,7 @@ menupopup,
 panel {
   --panel-background: var(--arrowpanel-background);
   --menuitem-padding: 6px !important;
-  --panel-shadow-margin: 8px;
+  --panel-box-shadow-margin: 8px;
 
   /* This should match GetMenuCornerRadius() on macOS, or be overridden below */
   @media (-moz-platform: macos) {
diff --git a/src/zen/common/styles/zen-single-components.css b/src/zen/common/styles/zen-single-components.css
index d9687232d..742a5348a 100644
--- a/src/zen/common/styles/zen-single-components.css
+++ b/src/zen/common/styles/zen-single-components.css
@@ -187,8 +187,8 @@
 .identity-box-button {
   --tab-border-radius: 6px;
   --toolbarbutton-border-radius: var(--tab-border-radius);
-  --toolbarbutton-inner-padding: 6px;
-  --toolbarbutton-outer-padding: 1px;
+  --toolbarbutton-padding-inner: 6px;
+  --toolbarbutton-padding-outer: 1px;
   --toolbarbutton-icon-fill: color-mix(in srgb, currentColor 70%, transparent);
 
   transition:
@@ -281,7 +281,7 @@
 
 /* Customizable modes */
 #customization-container {
-  --toolbar-bgcolor: var(--arrowpanel-background);
+  --toolbar-background-color: var(--arrowpanel-background);
 }
 
 /* Site Data popup */
diff --git a/src/zen/common/styles/zen-theme.css b/src/zen/common/styles/zen-theme.css
index 815dd2a34..7f3c21a3d 100644
--- a/src/zen/common/styles/zen-theme.css
+++ b/src/zen/common/styles/zen-theme.css
@@ -157,7 +157,7 @@
   }
 
   --zen-toolbar-button-inner-padding: 6px;
-  --toolbarbutton-outer-padding: 4px;
+  --toolbarbutton-padding-outer: 4px;
   --zen-toolbar-height-with-bookmarks: var(--zen-toolbar-height);
   &[zen-has-bookmarks='true'] {
     /* Make sure `30px` matches the bookmarks toolbar height */
@@ -175,7 +175,7 @@
     * as the backdrop matches our color scheme. The .6 matches what we do for
     * acrylic, and the .15 matches the 85% we do for the default toolbar
     * background on the native theme. */
-  --toolbar-bgcolor: light-dark(rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.15));
+  --toolbar-background-color: light-dark(rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.15));
 
   --toolbarbutton-active-background: color-mix(
     in srgb,
diff --git a/src/zen/compact-mode/ZenCompactMode.mjs b/src/zen/compact-mode/ZenCompactMode.mjs
index a29d6dd13..4e6cd0806 100644
--- a/src/zen/compact-mode/ZenCompactMode.mjs
+++ b/src/zen/compact-mode/ZenCompactMode.mjs
@@ -980,7 +980,7 @@ window.gZenCompactModeManager = {
         button: {
           id: "zen-open-background-tab-button",
           command: () => {
-            const targetWindow = window.ownerGlobal.parent || window;
+            const targetWindow = window.parent || window;
             targetWindow.gBrowser.selectedTab = tab;
           },
         },
diff --git a/src/zen/compact-mode/sidebar.inc.css b/src/zen/compact-mode/sidebar.inc.css
index 9d665df58..a9604e455 100644
--- a/src/zen/compact-mode/sidebar.inc.css
+++ b/src/zen/compact-mode/sidebar.inc.css
@@ -38,7 +38,7 @@
 
   #zen-sidebar-top-buttons-customization-target {
     padding-inline-start: calc(
-      var(--zen-toolbox-padding) - var(--toolbarbutton-outer-padding)
+      var(--zen-toolbox-padding) - var(--toolbarbutton-padding-outer)
     ) !important;
   }
 
diff --git a/src/zen/drag-and-drop/ZenDragAndDrop.js b/src/zen/drag-and-drop/ZenDragAndDrop.js
index 0c9d9d427..05f31ac9c 100644
--- a/src/zen/drag-and-drop/ZenDragAndDrop.js
+++ b/src/zen/drag-and-drop/ZenDragAndDrop.js
@@ -188,7 +188,7 @@
           // for the tab to be more visible. This is a hacky workaround.
           // TODO: Make windows and linux DnD use nsZenDragAndDrop::mDragImageOpacity
           tabClone.style.colorScheme = "light";
-          tabClone.style.color = "black";
+          tabClone.style.setProperty("--tab-selected-textcolor", "black");
         }
         if (i > 0) {
           tabClone.style.transform = `translate(${i * 4}px, -${i * (tabRect.height - 4)}px)`;
@@ -697,8 +697,13 @@
       for (let tab of tabs) {
         if (isExplicitMode) {
           tab.style.colorScheme = isDarkMode ? "dark" : "light";
+          tab.style.setProperty(
+            "--tab-selected-textcolor",
+            isDarkMode ? "white" : "black"
+          );
         } else {
           tab.style.colorScheme = "";
+          tab.style.removeProperty("--tab-selected-textcolor");
         }
       }
       requestAnimationFrame(() => {
@@ -947,7 +952,7 @@
       const ownerGlobal = event.dataTransfer.mozGetDataAt(
         TAB_DROP_TYPE,
         0
-      )?.ownerGlobal;
+      )?.documentGlobal;
       if (ownerGlobal?.gZenCompactModeManager) {
         // Sometimes, dragend doesn't always get called when dragging
         // to different windows, see gh-8643.
@@ -967,7 +972,7 @@
       const dt = event.dataTransfer;
       const activeWorkspace = gZenWorkspaces.activeWorkspace;
       let draggedTab = dt.mozGetDataAt(TAB_DROP_TYPE, 0);
-      if (draggedTab.ownerGlobal === window) {
+      if (draggedTab.documentGlobal === window) {
         if (
           !draggedTab.hasAttribute("zen-essential") &&
           draggedTab.getAttribute("zen-workspace-id") != activeWorkspace
@@ -1051,7 +1056,7 @@
             gZenWorkspaces.activeWorkspace ||
           !dropElement.visible ||
           !draggedTab.visible ||
-          draggedTab.ownerGlobal !== window
+          draggedTab.documentGlobal !== window
         ) {
           return;
         }
@@ -1158,7 +1163,7 @@
     handle_dragend(event) {
       const dt = event.dataTransfer;
       const draggedTab = dt.mozGetDataAt(TAB_DROP_TYPE, 0);
-      let ownerGlobal = draggedTab?.ownerGlobal;
+      let ownerGlobal = draggedTab?.documentGlobal;
       draggedTab.style.visibility = "";
       let thisFromGlobal = ownerGlobal?.gBrowser.tabContainer.tabDragAndDrop;
       let currentEssenialContainer =
diff --git a/src/zen/glance/actors/ZenGlanceChild.sys.mjs b/src/zen/glance/actors/ZenGlanceChild.sys.mjs
index f31b83e61..1758204d6 100644
--- a/src/zen/glance/actors/ZenGlanceChild.sys.mjs
+++ b/src/zen/glance/actors/ZenGlanceChild.sys.mjs
@@ -139,7 +139,10 @@ export class ZenGlanceChild extends JSWindowActorChild {
       const deltaY = Math.abs(event.clientY - this.#mouseDownY);
       this.#mouseDownX = null;
       this.#mouseDownY = null;
-      if (deltaX > CLICK_DRAG_THRESHOLD_PX || deltaY > CLICK_DRAG_THRESHOLD_PX) {
+      if (
+        deltaX > CLICK_DRAG_THRESHOLD_PX ||
+        deltaY > CLICK_DRAG_THRESHOLD_PX
+      ) {
         return;
       }
     }
diff --git a/src/zen/live-folders/ZenLiveFolder.sys.mjs b/src/zen/live-folders/ZenLiveFolder.sys.mjs
index 54ed5d2c1..666bd5c99 100644
--- a/src/zen/live-folders/ZenLiveFolder.sys.mjs
+++ b/src/zen/live-folders/ZenLiveFolder.sys.mjs
@@ -129,7 +129,7 @@ export class nsZenLiveFolderProvider {
     let userContextId = 0;
     let folder = this.manager.getFolderForLiveFolder(this);
     if (folder) {
-      let space = folder.ownerGlobal.gZenWorkspaces.getWorkspaceFromId(
+      let space = folder.documentGlobal.gZenWorkspaces.getWorkspaceFromId(
         folder.getAttribute("zen-workspace-id")
       );
       if (space) {
diff --git a/src/zen/live-folders/ZenLiveFoldersManager.sys.mjs b/src/zen/live-folders/ZenLiveFoldersManager.sys.mjs
index 786fc2452..c96b6eeb1 100644
--- a/src/zen/live-folders/ZenLiveFoldersManager.sys.mjs
+++ b/src/zen/live-folders/ZenLiveFoldersManager.sys.mjs
@@ -272,7 +272,7 @@ class nsZenLiveFoldersManager {
     let labelElement = folder.labelElement;
     labelElement.setAttribute("live-folder-animation", "true");
     labelElement.style.backgroundPositionX = "0%";
-    folder.ownerGlobal.gZenUIManager.motion
+    folder.documentGlobal.gZenUIManager.motion
       .animate(
         labelElement,
         {
@@ -440,7 +440,7 @@ class nsZenLiveFoldersManager {
     }
 
     let userContextId = 0;
-    let space = folder.ownerGlobal.gZenWorkspaces.getWorkspaceFromId(
+    let space = folder.documentGlobal.gZenWorkspaces.getWorkspaceFromId(
       folder.getAttribute("zen-workspace-id")
     );
     if (space) {
diff --git a/src/zen/media/zen-media-controls.css b/src/zen/media/zen-media-controls.css
index 9cabf107e..2c5adbf94 100644
--- a/src/zen/media/zen-media-controls.css
+++ b/src/zen/media/zen-media-controls.css
@@ -21,7 +21,7 @@
   #zen-media-buttons-hbox {
     align-items: start;
     margin-top: -4px;
-    --toolbarbutton-outer-padding: 2px;
+    --toolbarbutton-padding-outer: 2px;
   }
 
   &:not([media-sharing]) {
@@ -274,7 +274,7 @@
   align-items: flex-end;
   justify-content: space-between;
   max-width: 100%;
-  --toolbarbutton-outer-padding: 0;
+  --toolbarbutton-padding-outer: 0;
   container: media-controls / inline-size;
   gap: 0.7rem;
 }
diff --git a/src/zen/sessionstore/ZenWindowSync.sys.mjs b/src/zen/sessionstore/ZenWindowSync.sys.mjs
index 1c1ba7b22..dc1f1f2f9 100644
--- a/src/zen/sessionstore/ZenWindowSync.sys.mjs
+++ b/src/zen/sessionstore/ZenWindowSync.sys.mjs
@@ -380,7 +380,7 @@ class nsZenWindowSync {
   }
 
   handleEvent(aEvent) {
-    const window = aEvent.currentTarget.ownerGlobal;
+    const window = aEvent.currentTarget.documentGlobal;
     if (
       !window.gZenStartup.isReady ||
       !window.gZenWorkspaces?.shouldHaveWorkspaces ||
@@ -686,7 +686,7 @@ class nsZenWindowSync {
         } else {
           const workspaceId =
             aTargetItem.getAttribute("zen-workspace-id") ||
-            aOriginalItem.ownerGlobal.gZenWorkspaces.activeWorkspace;
+            aOriginalItem.documentGlobal.gZenWorkspaces.activeWorkspace;
           const workspaceElement = gZenWorkspaces.workspaceElement(workspaceId);
           container = isPinned
             ? workspaceElement?.pinnedTabsContainer
@@ -717,7 +717,7 @@ class nsZenWindowSync {
    * @param {number} flags - The sync flags indicating what to synchronize.
    */
   #syncItemForAllWindows(aItem, flags = 0) {
-    const window = aItem.ownerGlobal;
+    const window = aItem.documentGlobal;
     this.#runOnAllWindows(window, win => {
       this.#syncItemWithOriginal(
         aItem,
@@ -765,7 +765,7 @@ class nsZenWindowSync {
    * @param {boolean} onClose - Indicates if the swap is done during a tab close operation.
    */
   #withRestoreTabProgressListener(aTab, callback, onClose = false) {
-    const otherTabBrowser = aTab.ownerGlobal.gBrowser;
+    const otherTabBrowser = aTab.documentGlobal.gBrowser;
     const otherBrowser = aTab.linkedBrowser;
 
     // We aren't closing the other tab so, we also need to swap its tablisteners.
@@ -821,7 +821,7 @@ class nsZenWindowSync {
     // There has been some reports of this happening in the wild, and while it shouldn't
     // cause any critical issues, it can cause some weird states and we should avoid it.
     // For example, see gh-13149
-    if (aOtherTab.ownerGlobal === aOurTab.ownerGlobal) {
+    if (aOtherTab.documentGlobal === aOurTab.documentGlobal) {
       this.log(
         `Cannot swap browsers between tabs ${aOurTab.id} and ${aOtherTab.id} because they are in the same window`
       );
@@ -866,7 +866,7 @@ class nsZenWindowSync {
       () => {
         this.log(`Swapping docshells between windows for tab ${aOurTab.id}`);
         try {
-          aOurTab.ownerGlobal.gBrowser.swapBrowsersAndCloseOther(
+          aOurTab.documentGlobal.gBrowser.swapBrowsersAndCloseOther(
             aOurTab,
             aOtherTab,
             false
@@ -936,7 +936,7 @@ class nsZenWindowSync {
       // Recalculate the focus in order to allow the user to continue typing
       // inside the web content area without having to click outside and back in.
       aOurTab.linkedBrowser.blur();
-      aOurTab.ownerGlobal.gBrowser._adjustFocusAfterTabSwitch(aOurTab);
+      aOurTab.documentGlobal.gBrowser._adjustFocusAfterTabSwitch(aOurTab);
       aOurTab.linkedBrowser.docShellIsActive = true;
     }
   }
@@ -955,7 +955,7 @@ class nsZenWindowSync {
     return new Promise(async resolve => {
       if (callback) {
         const browserBlob =
-          await aOtherTab.ownerGlobal.PageThumbs.captureToBlob(
+          await aOtherTab.documentGlobal.PageThumbs.captureToBlob(
             aOtherTab.linkedBrowser,
             {
               fullScale: true,
@@ -1005,7 +1005,7 @@ class nsZenWindowSync {
    */
   #createPseudoImageForBrowser(aBrowser, aSrc) {
     const doc = aBrowser.ownerDocument;
-    const win = aBrowser.ownerGlobal;
+    const win = aBrowser.documentGlobal;
     const img = doc.createElement("img");
     img.className = "zen-pseudo-browser-image";
     img.src = aSrc;
@@ -1224,7 +1224,8 @@ class nsZenWindowSync {
       this.log(`Setting pinned initial state for tab ${aTab.id}`);
       let { entries, index } = this.#getTabEntriesFromCache(aTab);
       let image =
-        aTab.getAttribute("image") || aTab.ownerGlobal.gBrowser.getIcon(aTab);
+        aTab.getAttribute("image") ||
+        aTab.documentGlobal.gBrowser.getIcon(aTab);
       let activeIndex = typeof index === "number" ? index : entries.length;
       // Tab state cache gives us the index starting from 1 instead of 0.
       activeIndex--;
@@ -1322,7 +1323,7 @@ class nsZenWindowSync {
       return;
     }
     let image =
-      aTab.getAttribute("image") || aTab.ownerGlobal.gBrowser.getIcon(aTab);
+      aTab.getAttribute("image") || aTab.documentGlobal.gBrowser.getIcon(aTab);
     this.#runOnAllWindows(null, win => {
       const targetTab = this.getItemFromWindow(win, aTab.id);
       if (targetTab) {
@@ -1335,7 +1336,7 @@ class nsZenWindowSync {
 
   on_TabOpen(aEvent, { ignoreExistingId = false } = {}) {
     const tab = aEvent.target;
-    const window = tab.ownerGlobal;
+    const window = tab.documentGlobal;
     const isUnsyncedWindow = window.gZenWorkspaces.privateWindowOrDisabled;
     if (tab.id && !ignoreExistingId) {
       // This tab was opened as part of a sync operation.
@@ -1390,28 +1391,28 @@ class nsZenWindowSync {
 
   on_TabHide(aEvent) {
     const tab = aEvent.target;
-    const window = tab.ownerGlobal;
+    const window = tab.documentGlobal;
     if (lazy.gSyncOnlyPinnedTabs && !tab.pinned) {
       return;
     }
     this.#runOnAllWindows(window, win => {
       const targetTab = this.getItemFromWindow(win, tab.id);
       if (targetTab) {
-        targetTab.ownerGlobal.gBrowser.hideTab(targetTab);
+        targetTab.documentGlobal.gBrowser.hideTab(targetTab);
       }
     });
   }
 
   on_TabShow(aEvent) {
     const tab = aEvent.target;
-    const window = tab.ownerGlobal;
+    const window = tab.documentGlobal;
     if (lazy.gSyncOnlyPinnedTabs && !tab.pinned) {
       return;
     }
     this.#runOnAllWindows(window, win => {
       const targetTab = this.getItemFromWindow(win, tab.id);
       if (targetTab) {
-        targetTab.ownerGlobal.gBrowser.showTab(targetTab);
+        targetTab.documentGlobal.gBrowser.showTab(targetTab);
       }
     });
   }
@@ -1465,7 +1466,7 @@ class nsZenWindowSync {
 
   on_TabClose(aEvent) {
     const tab = aEvent.target;
-    const window = tab.ownerGlobal;
+    const window = tab.documentGlobal;
     this.#runOnAllWindows(window, win => {
       const targetTab = this.getItemFromWindow(win, tab.id);
       if (targetTab) {
@@ -1524,14 +1525,14 @@ class nsZenWindowSync {
     // eslint-disable-next-line no-async-promise-executor
     this.#docShellSwitchPromise = new Promise(async resolve => {
       await promise;
-      await this.#onTabSwitchOrWindowFocus(tab.ownerGlobal, previousTab);
+      await this.#onTabSwitchOrWindowFocus(tab.documentGlobal, previousTab);
       resolve();
       this.#docShellSwitchPromise = null;
     });
   }
 
   on_SSWindowClosing(aEvent) {
-    const window = aEvent.target.ownerGlobal;
+    const window = aEvent.target.documentGlobal ?? aEvent.target;
     window._zenClosingWindow = true;
     for (let eventName of EVENTS) {
       window.removeEventListener(eventName, this);
@@ -1556,7 +1557,7 @@ class nsZenWindowSync {
       const tab = this.#swapedTabsEntriesForWC.get(browser.permanentKey);
       if (tab) {
         try {
-          let win = tab.ownerGlobal;
+          let win = tab.documentGlobal;
           this.log(`Finalizing swap for tab ${tab.id} on window close`);
           lazy.TabStateCache.update(
             tab.linkedBrowser.permanentKey,
@@ -1597,7 +1598,7 @@ class nsZenWindowSync {
       // This tab group was opened as part of a sync operation.
       return;
     }
-    const window = tabGroup.ownerGlobal;
+    const window = tabGroup.documentGlobal;
     const isFolder = tabGroup.isZenFolder;
     const isSplitView = tabGroup.hasAttribute("split-view-group");
     if (isSplitView) {
@@ -1630,7 +1631,7 @@ class nsZenWindowSync {
 
   on_TabGroupRemoved(aEvent) {
     const tabGroup = aEvent.target;
-    const window = tabGroup.ownerGlobal;
+    const window = tabGroup.documentGlobal;
     this.#runOnAllWindows(window, win => {
       const targetGroup = this.getItemFromWindow(win, tabGroup.id);
       if (targetGroup) {
@@ -1664,7 +1665,7 @@ class nsZenWindowSync {
 
   on_ZenTabRemovedFromSplit(aEvent) {
     const tab = aEvent.target;
-    const window = tab.ownerGlobal;
+    const window = tab.documentGlobal;
     this.#runOnAllWindows(window, win => {
       const targetTab = this.getItemFromWindow(win, tab.id);
       if (targetTab && win.gZenViewSplitter) {
@@ -1677,7 +1678,7 @@ class nsZenWindowSync {
 
   on_ZenSplitViewTabsSplit(aEvent) {
     const tabGroup = aEvent.target;
-    const window = tabGroup.ownerGlobal;
+    const window = tabGroup.documentGlobal;
     const tabs = tabGroup.tabs;
     this.#runOnAllWindows(window, win => {
       const otherWindowTabs = tabs
diff --git a/src/zen/spaces/ZenSpaceManager.mjs b/src/zen/spaces/ZenSpaceManager.mjs
index 928d634dc..3ba066179 100644
--- a/src/zen/spaces/ZenSpaceManager.mjs
+++ b/src/zen/spaces/ZenSpaceManager.mjs
@@ -225,8 +225,8 @@ class nsZenWorkspaces {
       if (
         this._emptyTab &&
         !this._emptyTab.closing &&
-        this._emptyTab.ownerGlobal &&
-        !this._emptyTab.ownerGlobal.closed &&
+        this._emptyTab.documentGlobal &&
+        !this._emptyTab.documentGlobal.closed &&
         gZenVerticalTabsManager._canReplaceNewTab
       ) {
         gBrowser.selectedTab = this._emptyTab;
@@ -3243,8 +3243,8 @@ class nsZenWorkspaces {
     // Validate tab state
     if (
       tab.closing ||
-      !tab.ownerGlobal ||
-      tab.ownerGlobal.closed ||
+      !tab.documentGlobal ||
+      tab.documentGlobal.closed ||
       !tab.linkedBrowser
     ) {
       console.warn("Tab is no longer valid, cannot select it");
diff --git a/src/zen/spaces/zen-workspaces.css b/src/zen/spaces/zen-workspaces.css
index f5d7e91a9..bbe842ee2 100644
--- a/src/zen/spaces/zen-workspaces.css
+++ b/src/zen/spaces/zen-workspaces.css
@@ -166,7 +166,7 @@
 
 /* Mark workspaces indicator */
 .zen-current-workspace-indicator {
-  --indicator-gap: calc(var(--toolbarbutton-inner-padding) - 1px);
+  --indicator-gap: calc(var(--toolbarbutton-padding-inner) - 1px);
   padding: calc(3px + var(--tab-inline-padding) + var(--zen-toolbox-padding));
   font-weight: 500;
   position: relative;
@@ -272,7 +272,7 @@
     margin-left: auto !important;
     transition: opacity 0.1s;
     order: 5;
-    --toolbarbutton-inner-padding: 6px !important;
+    --toolbarbutton-padding-inner: 6px !important;
     opacity: 0;
     visibility: collapse;
 
diff --git a/src/zen/split-view/ZenViewSplitter.mjs b/src/zen/split-view/ZenViewSplitter.mjs
index 9deb7014d..8674dd0bd 100644
--- a/src/zen/split-view/ZenViewSplitter.mjs
+++ b/src/zen/split-view/ZenViewSplitter.mjs
@@ -326,7 +326,7 @@ class nsZenViewSplitter extends nsZenDOMOperatedFeature {
       if (
         !gBrowser.isTab(draggedTab) ||
         gBrowser.selectedTab.hasAttribute("zen-empty-tab") ||
-        draggedTab.ownerGlobal !== window
+        draggedTab.documentGlobal !== window
       ) {
         return;
       }
@@ -1975,7 +1975,7 @@ class nsZenViewSplitter extends nsZenDOMOperatedFeature {
    * @returns {tab} The tab that was opened
    */
   openAndSwitchToTab(url, options) {
-    const parentWindow = window.ownerGlobal.parent;
+    const parentWindow = window.parent;
     const targetWindow = parentWindow || window;
     const tab = targetWindow.gBrowser.addTrustedTab(url, options);
     targetWindow.gBrowser.selectedTab = tab;
diff --git a/src/zen/tabs/ZenPinnedTabManager.mjs b/src/zen/tabs/ZenPinnedTabManager.mjs
index 4bed63447..b2adb121f 100644
--- a/src/zen/tabs/ZenPinnedTabManager.mjs
+++ b/src/zen/tabs/ZenPinnedTabManager.mjs
@@ -471,7 +471,7 @@ class nsZenPinnedTabManager extends nsZenDOMOperatedFeature {
       }
       if (tab.pinned) {
         gBrowser.zenHandleTabMove(tab, () => {
-          if (tab.ownerGlobal !== window) {
+          if (tab.documentGlobal !== window) {
             tab = gBrowser.adoptTab(tab, {
               selectTab: tab.selected,
             });
@@ -679,12 +679,15 @@ class nsZenPinnedTabManager extends nsZenDOMOperatedFeature {
         ) {
           workspaceId = gZenWorkspaces.activeWorkspace;
         }
-        if (tab.ownerGlobal !== window) {
+        if (tab.documentGlobal !== window) {
           fromDifferentWindow = true;
           if (workspaceId) {
-            tab.ownerGlobal.gBrowser.selectedTab =
-              tab.ownerGlobal.gBrowser._findTabToBlurTo(tab, movingTabs);
-            tab.ownerGlobal.gZenWorkspaces.moveTabToWorkspace(tab, workspaceId);
+            tab.documentGlobal.gBrowser.selectedTab =
+              tab.documentGlobal.gBrowser._findTabToBlurTo(tab, movingTabs);
+            tab.documentGlobal.gZenWorkspaces.moveTabToWorkspace(
+              tab,
+              workspaceId
+            );
           }
           // Move the tabs into this window. To avoid multiple tab-switches in
           // the original window, the selected tab should be adopted last.
diff --git a/src/zen/tabs/zen-tabs/vertical-tabs.css b/src/zen/tabs/zen-tabs/vertical-tabs.css
index 95b14688f..4f5123d5f 100644
--- a/src/zen/tabs/zen-tabs/vertical-tabs.css
+++ b/src/zen/tabs/zen-tabs/vertical-tabs.css
@@ -373,7 +373,7 @@
     & .tabbrowser-tab {
       pointer-events: none;
       margin: 0 0 0 4px !important;
-      --toolbarbutton-inner-padding: 0;
+      --toolbarbutton-padding-inner: 0;
       --border-radius-medium: 8px;
       width: var(--size-item-medium);
       height: var(--size-item-medium);
@@ -401,7 +401,7 @@
 
       /* Style glance tab icon */
       & .tab-icon-image {
-        --toolbarbutton-inner-padding: 0 !important;
+        --toolbarbutton-padding-inner: 0 !important;
         width: 14px;
         height: 14px;
       }
@@ -515,8 +515,8 @@
   }
 
   #tabbrowser-tabs {
-    --toolbarbutton-inner-padding: 10px !important;
-    --tab-icon-end-margin: var(--toolbarbutton-inner-padding) !important;
+    --toolbarbutton-padding-inner: 10px !important;
+    --tab-icon-end-margin: var(--toolbarbutton-padding-inner) !important;
   }
 
   & .tab-audio-button {
@@ -687,8 +687,8 @@
       .tab-icon-image,
       .tab-sharing-icon-overlay,
       .tab-icon-overlay {
-        margin-inline-end: var(--toolbarbutton-inner-padding) !important;
-        margin-inline-start: calc(var(--toolbarbutton-inner-padding) / 3) !important;
+        margin-inline-end: var(--toolbarbutton-padding-inner) !important;
+        margin-inline-start: calc(var(--toolbarbutton-padding-inner) / 3) !important;
       }
     }
   }
@@ -952,7 +952,7 @@
   height: calc(100% - var(--tab-block-margin) * 2);
   margin-left: calc(-1 * var(--tab-inline-padding) + var(--tab-block-margin));
   margin-right: 8px;
-  padding: 0 calc(var(--toolbarbutton-inner-padding) - 2px) 0 calc(var(--toolbarbutton-inner-padding) / 3 + var(--tab-inline-padding) - 2px);
+  padding: 0 calc(var(--toolbarbutton-padding-inner) - 2px) 0 calc(var(--toolbarbutton-padding-inner) / 3 + var(--tab-inline-padding) - 2px);
   border-radius: 0;
   border-top-left-radius: var(--border-radius-medium);
   width: unset;
@@ -1029,7 +1029,7 @@
   min-width: unset !important;
 
   :root[zen-sidebar-expanded="true"] & {
-    --toolbarbutton-inner-padding: var(--zen-toolbar-button-inner-padding) !important;
+    --toolbarbutton-padding-inner: var(--zen-toolbar-button-inner-padding) !important;
   }
 
   :root[zen-single-toolbar="true"] & {
@@ -1048,7 +1048,7 @@
     align-items: center;
 
     #nav-bar & {
-      padding-inline-end: var(--toolbarbutton-outer-padding);
+      padding-inline-end: var(--toolbarbutton-padding-outer);
     }
 
     :root:not([zen-sidebar-expanded="true"]) & toolbarspring {
@@ -1171,7 +1171,7 @@
 
 .tabbrowser-tab[zen-essential="true"],
 #zen-welcome-initial-essentials-browser-sidebar-essentials .tabbrowser-tab {
-  --toolbarbutton-inner-padding: 0;
+  --toolbarbutton-padding-inner: 0;
   max-width: unset;
   width: 100% !important;
 
diff --git a/src/zen/tests/mochitests/safebrowsing/browser_whitelisted.js b/src/zen/tests/mochitests/safebrowsing/browser_whitelisted.js
index c62d41a4f..5848a32ff 100644
--- a/src/zen/tests/mochitests/safebrowsing/browser_whitelisted.js
+++ b/src/zen/tests/mochitests/safebrowsing/browser_whitelisted.js
@@ -40,7 +40,7 @@ add_task(async function testNormalBrowsing() {
     browser: tab.linkedBrowser,
     uriString: TEST_PAGE,
   });
-  testWhitelistedPage(tab.ownerGlobal);
+  testWhitelistedPage(tab.documentGlobal);
 
   info("Load a test page that's no longer whitelisted");
   Services.prefs.setCharPref(PREF_WHITELISTED_HOSTNAMES, "");
@@ -54,5 +54,5 @@ add_task(async function testNormalBrowsing() {
   );
   BrowserTestUtils.startLoadingURIString(tab.linkedBrowser, TEST_PAGE);
   await blockedLoaded;
-  testBlockedPage(tab.ownerGlobal);
+  testBlockedPage(tab.documentGlobal);
 });
diff --git a/src/zen/tests/mochitests/shell/browser.toml b/src/zen/tests/mochitests/shell/browser.toml
index 8f6af8802..79e0e5b60 100644
--- a/src/zen/tests/mochitests/shell/browser.toml
+++ b/src/zen/tests/mochitests/shell/browser.toml
@@ -2,7 +2,10 @@
 
 ["browser_1119088.js"]
 disabled="Disabled by import_external_tests.py"
-support-files = ["mac_desktop_image.py"]
+support-files = [
+  "large.png",
+  "mac_desktop_image.py"
+]
 run-if = [
   "os == 'mac'",
 ]
@@ -12,6 +15,7 @@ skip-if = [
 ]
 
 ["browser_420786.js"]
+support-files = ["large.png"]
 run-if = [
   "os == 'linux' && os_version == '22.04' && arch == 'x86_64' && display == 'wayland'",
   "os == 'linux' && os_version == '24.04' && arch == 'x86_64' && display == 'x11'",
@@ -116,4 +120,5 @@ tags = "os_integration"
 
 ["browser_setDesktopBackgroundPreview.js"]
 disabled="Disabled by import_external_tests.py"
+support-files = ["large.png"]
 tags = "os_integration"
diff --git a/src/zen/tests/mochitests/shell/browser_1119088.js b/src/zen/tests/mochitests/shell/browser_1119088.js
index 6702769a3..2f466c92d 100644
--- a/src/zen/tests/mochitests/shell/browser_1119088.js
+++ b/src/zen/tests/mochitests/shell/browser_1119088.js
@@ -92,20 +92,19 @@ add_setup(async function () {
 /**
  * Tests "Set As Desktop Background" platform implementation on macOS.
  *
- * Sets the desktop background image to the browser logo from the about:logo
- * page and verifies it was set successfully. Setting the desktop background
- * (which uses the nsIShellService::setDesktopBackground() interface method)
- * downloads the image to ~/Pictures using a unique file name and sets the
- * desktop background to the downloaded file leaving the download in place.
- * After setDesktopBackground() is called, the test uses a python script to
- * validate that the current desktop background is in fact set to the
- * downloaded logo.
+ * Sets the desktop background image to the large.png image and verifies it was
+ * set successfully. Setting the desktop background (which uses the
+ * nsIShellService::setDesktopBackground() interface method) downloads the
+ * image to ~/Pictures using a unique file name and sets the desktop background
+ * to the downloaded file leaving the download in place. After
+ * setDesktopBackground() is called, the test uses a python script to validate
+ * that the current desktop background is in fact set to the downloaded image.
  */
 add_task(async function () {
   await BrowserTestUtils.withNewTab(
     {
       gBrowser,
-      url: "about:logo",
+      url: getRootDirectory(gTestPath) + "large.png",
     },
     async () => {
       let dirSvc = Cc["@mozilla.org/file/directory_service;1"].getService(
@@ -140,7 +139,7 @@ add_task(async function () {
 
       // For simplicity, we're going to reach in and access the image on the
       // page directly, which means the page shouldn't be running in a remote
-      // browser. Thankfully, about:logo runs in the parent process for now.
+      // browser. Thankfully, chrome:// runs in the parent process for now.
       Assert.ok(
         !gBrowser.selectedBrowser.isRemoteBrowser,
         "image can be accessed synchronously from the parent process"
diff --git a/src/zen/tests/mochitests/shell/browser_420786.js b/src/zen/tests/mochitests/shell/browser_420786.js
index b9becb49c..1f7beb45c 100644
--- a/src/zen/tests/mochitests/shell/browser_420786.js
+++ b/src/zen/tests/mochitests/shell/browser_420786.js
@@ -12,7 +12,7 @@ add_task(async function () {
   await BrowserTestUtils.withNewTab(
     {
       gBrowser,
-      url: "about:logo",
+      url: getRootDirectory(gTestPath) + "large.png",
     },
     () => {
       var brandName = Services.strings
@@ -46,7 +46,7 @@ add_task(async function () {
 
       // For simplicity, we're going to reach in and access the image on the
       // page directly, which means the page shouldn't be running in a remote
-      // browser. Thankfully, about:logo runs in the parent process for now.
+      // browser. Thankfully, chrome:// runs in the parent process for now.
       Assert.ok(
         !gBrowser.selectedBrowser.isRemoteBrowser,
         "image can be accessed synchronously from the parent process"
diff --git a/src/zen/tests/mochitests/shell/browser_setDefaultPDFHandler.js b/src/zen/tests/mochitests/shell/browser_setDefaultPDFHandler.js
index 332a7c6f7..04cc1f069 100644
--- a/src/zen/tests/mochitests/shell/browser_setDefaultPDFHandler.js
+++ b/src/zen/tests/mochitests/shell/browser_setDefaultPDFHandler.js
@@ -323,14 +323,39 @@ add_task(async function test_setAsDefaultPDFHandler_knownBrowser() {
   }
 });
 
+// Wait for the deferred set_default_pdf_handler_attempt event to be recorded,
+// then return the single event that was emitted by the most recent call.
+async function awaitAttemptEvent() {
+  await TestUtils.waitForCondition(() => {
+    const events = Glean.browser.setDefaultPdfHandlerAttempt.testGetValue();
+    return events && events.length;
+  }, "Recorded set_default_pdf_handler_attempt event");
+  const events = Glean.browser.setDefaultPdfHandlerAttempt.testGetValue();
+  Assert.equal(events.length, 1, "Recorded exactly one attempt event");
+  return events[0];
+}
+
 add_task(async function test_setAsDefaultPDFHandler_fallback() {
   const sandbox = sinon.createSandbox();
+  // Enable the IOpenWithLauncher branch explicitly so the test does not
+  // depend on the build-channel default of
+  // browser.shell.setDefaultPDFHandler.useOpenWith, and use a 0ms wait so
+  // the deferred attempt event fires promptly.
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["browser.shell.setDefaultPDFHandler.useOpenWith", true],
+      ["browser.shell.setDefaultPDFHandler.attemptWaitTimeMs", 0],
+    ],
+  });
 
   try {
     const userChoiceStub = sandbox
       .stub(ShellService, "setAsDefaultPDFHandlerUserChoice")
       .rejects(new Error("mock userChoice failure"));
     sandbox.stub(ShellService, "_isWindows11").returns(true);
+    const isDefaultHandlerForStub = sandbox
+      .stub(ShellService, "isDefaultHandlerFor")
+      .returns(true);
 
     info(
       "When userChoice fails and open-with picker succeeds, should not fall back to settings dialog"
@@ -352,27 +377,42 @@ add_task(async function test_setAsDefaultPDFHandler_fallback() {
       1,
       "Recorded user-choice failure"
     );
+
+    let event = await awaitAttemptEvent();
+    Assert.equal(event.extra.method, "open_with", "Event method is open_with");
+    Assert.equal(event.extra.success, "true", "Event success is true");
     Assert.equal(
-      Glean.browser.setDefaultPdfHandlerUserChoiceResult.Success.testGetValue(),
-      undefined,
-      "Did not record user-choice success"
+      event.extra.result_is_default,
+      "true",
+      "Event result_is_default reflects isDefaultHandlerFor"
     );
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerOpenWithResult.Success.testGetValue(),
-      1,
-      "Recorded open-with success"
-    );
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerOpenWithResult.Failure.testGetValue(),
-      undefined,
-      "Did not record open-with failure"
-    );
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerModernSettingsResult.Success.testGetValue(),
-      undefined,
-      "Did not record modern settings result"
+    Assert.ok(
+      isDefaultHandlerForStub.calledWith(".pdf"),
+      "Sampled isDefaultHandlerFor after the delay"
     );
     userChoiceStub.resetHistory();
+    isDefaultHandlerForStub.resetHistory();
+    launchOpenWithDefaultPickerForFileTypeStub.resetHistory();
+    launchModernSettingsDialogDefaultAppsStub.resetHistory();
+
+    info(
+      "When the picker succeeds but Firefox is not default after the delay, event records result_is_default=false"
+    );
+    Services.fog.testResetFOG();
+    isDefaultHandlerForStub.returns(false);
+    await ShellService.setAsDefaultPDFHandler(false);
+
+    event = await awaitAttemptEvent();
+    Assert.equal(event.extra.method, "open_with", "Event method is open_with");
+    Assert.equal(event.extra.success, "true", "Event success is true");
+    Assert.equal(
+      event.extra.result_is_default,
+      "false",
+      "Event result_is_default is false when Firefox did not become default"
+    );
+    isDefaultHandlerForStub.returns(true);
+    userChoiceStub.resetHistory();
+    isDefaultHandlerForStub.resetHistory();
     launchOpenWithDefaultPickerForFileTypeStub.resetHistory();
     launchModernSettingsDialogDefaultAppsStub.resetHistory();
 
@@ -399,72 +439,120 @@ add_task(async function test_setAsDefaultPDFHandler_fallback() {
       1,
       "Recorded user-choice failure"
     );
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerUserChoiceResult.Success.testGetValue(),
-      undefined,
-      "Did not record user-choice success"
-    );
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerOpenWithResult.Failure.testGetValue(),
-      1,
-      "Recorded open-with failure"
-    );
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerOpenWithResult.Success.testGetValue(),
-      undefined,
-      "Did not record open-with success"
-    );
     Assert.equal(
       Glean.browser.setDefaultPdfHandlerModernSettingsResult.Success.testGetValue(),
       1,
       "Recorded modern settings success"
     );
+
+    event = await awaitAttemptEvent();
     Assert.equal(
-      Glean.browser.setDefaultPdfHandlerModernSettingsResult.Failure.testGetValue(),
-      undefined,
-      "Did not record modern settings failure"
+      event.extra.method,
+      "settings",
+      "Event method is settings (last attempted)"
+    );
+    Assert.equal(
+      event.extra.success,
+      "true",
+      "Event success reflects modern settings launch"
+    );
+    Assert.equal(
+      event.extra.result_is_default,
+      "true",
+      "Event result_is_default reflects isDefaultHandlerFor"
     );
     userChoiceStub.resetHistory();
+    isDefaultHandlerForStub.resetHistory();
     launchOpenWithDefaultPickerForFileTypeStub.resetHistory();
     launchModernSettingsDialogDefaultAppsStub.resetHistory();
 
     info(
-      "When userChoice fails, open-with fails, and modern settings fails, should record all failures"
+      "When userChoice fails, open-with fails, and modern settings fails, event records success=false"
     );
     Services.fog.testResetFOG();
+    isDefaultHandlerForStub.returns(false);
     launchModernSettingsDialogDefaultAppsStub.throws(
       new Error("mock modern settings failure")
     );
     await ShellService.setAsDefaultPDFHandler(false);
 
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerUserChoiceResult.ErrOther.testGetValue(),
-      1,
-      "Recorded user-choice failure"
-    );
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerUserChoiceResult.Success.testGetValue(),
-      undefined,
-      "Did not record user-choice success"
-    );
-    Assert.equal(
-      Glean.browser.setDefaultPdfHandlerOpenWithResult.Failure.testGetValue(),
-      1,
-      "Recorded open-with failure"
-    );
     Assert.equal(
       Glean.browser.setDefaultPdfHandlerModernSettingsResult.Failure.testGetValue(),
       1,
       "Recorded modern settings failure"
     );
+
+    event = await awaitAttemptEvent();
     Assert.equal(
-      Glean.browser.setDefaultPdfHandlerModernSettingsResult.Success.testGetValue(),
-      undefined,
-      "Did not record modern settings success"
+      event.extra.method,
+      "settings",
+      "Event method is settings (last attempted)"
+    );
+    Assert.equal(
+      event.extra.success,
+      "false",
+      "Event success is false when every method failed"
+    );
+    Assert.equal(
+      event.extra.result_is_default,
+      "false",
+      "Event result_is_default is false when no method set the default"
     );
   } finally {
     launchOpenWithDefaultPickerForFileTypeStub.reset();
     launchModernSettingsDialogDefaultAppsStub.reset();
     sandbox.restore();
+    await SpecialPowers.popPrefEnv();
+  }
+});
+
+add_task(async function test_setAsDefaultPDFHandler_useOpenWithDisabled() {
+  const sandbox = sinon.createSandbox();
+  // With useOpenWith disabled, a userChoice failure should skip the
+  // IOpenWithLauncher branch entirely and fall straight through to the
+  // modern settings dialog.
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["browser.shell.setDefaultPDFHandler.useOpenWith", false],
+      ["browser.shell.setDefaultPDFHandler.attemptWaitTimeMs", 0],
+    ],
+  });
+
+  try {
+    sandbox
+      .stub(ShellService, "setAsDefaultPDFHandlerUserChoice")
+      .rejects(new Error("mock userChoice failure"));
+    sandbox.stub(ShellService, "_isWindows11").returns(true);
+    sandbox.stub(ShellService, "isDefaultHandlerFor").returns(true);
+
+    Services.fog.testResetFOG();
+    await ShellService.setAsDefaultPDFHandler(false);
+
+    Assert.ok(
+      launchOpenWithDefaultPickerForFileTypeStub.notCalled,
+      "Did not invoke open-with picker when pref is disabled"
+    );
+    Assert.ok(
+      launchModernSettingsDialogDefaultAppsStub.called,
+      "Fell through to modern settings dialog"
+    );
+
+    const event = await awaitAttemptEvent();
+    Assert.equal(
+      event.extra.method,
+      "settings",
+      "Event method skipped open_with and recorded settings"
+    );
+    Assert.equal(event.extra.success, "true", "Event success is true");
+    Assert.equal(
+      event.extra.result_is_default,
+      "true",
+      "Event result_is_default reflects isDefaultHandlerFor"
+    );
+  } finally {
+    launchOpenWithDefaultPickerForFileTypeStub.reset();
+    launchModernSettingsDialogDefaultAppsStub.reset();
+    sandbox.restore();
+    await SpecialPowers.popPrefEnv();
   }
 });
diff --git a/src/zen/tests/mochitests/shell/browser_setDesktopBackgroundPreview.js b/src/zen/tests/mochitests/shell/browser_setDesktopBackgroundPreview.js
index b847d0998..733123e04 100644
--- a/src/zen/tests/mochitests/shell/browser_setDesktopBackgroundPreview.js
+++ b/src/zen/tests/mochitests/shell/browser_setDesktopBackgroundPreview.js
@@ -16,7 +16,7 @@ add_task(async function () {
   await BrowserTestUtils.withNewTab(
     {
       gBrowser,
-      url: "about:logo",
+      url: getRootDirectory(gTestPath) + "large.png",
     },
     async () => {
       const dialogLoad = BrowserTestUtils.domWindowOpened(null, async win => {
diff --git a/src/zen/tests/mochitests/shell/gtest/SetDefaultBrowserButtonTests.cpp b/src/zen/tests/mochitests/shell/gtest/SetDefaultBrowserButtonTests.cpp
index 18f901df8..d28d077b9 100644
--- a/src/zen/tests/mochitests/shell/gtest/SetDefaultBrowserButtonTests.cpp
+++ b/src/zen/tests/mochitests/shell/gtest/SetDefaultBrowserButtonTests.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/src/zen/tests/mochitests/shell/large.png b/src/zen/tests/mochitests/shell/large.png
new file mode 100644
index 000000000..37012cf96
Binary files /dev/null and b/src/zen/tests/mochitests/shell/large.png differ
diff --git a/src/zen/tests/mochitests/shell/unit/test_desktopEntryStatus.js b/src/zen/tests/mochitests/shell/unit/test_desktopEntryStatus.js
new file mode 100644
index 000000000..de9b047e9
--- /dev/null
+++ b/src/zen/tests/mochitests/shell/unit/test_desktopEntryStatus.js
@@ -0,0 +1,131 @@
+/* Any copyright is dedicated to the Public Domain.
+http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+ChromeUtils.defineESModuleGetters(this, {
+  ShellService: "moz-src:///browser/components/shell/ShellService.sys.mjs",
+});
+
+const BAREBONES_DESKTOP_ENTRY = `[Desktop Entry]
+Version=1.5
+Type=Application
+Name=test_desktopEntryStatus.js test case
+`;
+
+let gHomeDir;
+let gSystemDir;
+
+const filename = what => `test_desktopEntryStatus_file_${what}.desktop`;
+
+// GLib caches results for efficiency. Unfortunately, it doesn't really provide
+// a way to invalidate that cache, aside from hoping that the file monitor
+// picks up on it. Resolve this by setting up all of the desktop entries at the
+// start, then doing checks, then exiting.
+//
+// (Some others are special-cased, namely absent and Hidden= checks.)
+const kDesktopEntries = [
+  {
+    label: "visible",
+    content: BAREBONES_DESKTOP_ENTRY,
+    expected: Ci.nsIGNOMEShellService.DESKTOP_ENTRY_VISIBLE,
+  },
+  {
+    label: "nodisplay",
+    content: BAREBONES_DESKTOP_ENTRY + "NoDisplay=true\n",
+    expected: Ci.nsIGNOMEShellService.DESKTOP_ENTRY_INVISIBLE,
+  },
+  {
+    label: "onlyshowin-matching",
+    content: BAREBONES_DESKTOP_ENTRY + "OnlyShowIn=FirefoxOS\n",
+    expected: Ci.nsIGNOMEShellService.DESKTOP_ENTRY_VISIBLE,
+  },
+  {
+    label: "onlyshowin-notmatching",
+    content: BAREBONES_DESKTOP_ENTRY + "OnlyShowIn=another\n",
+    expected: Ci.nsIGNOMEShellService.DESKTOP_ENTRY_INVISIBLE,
+  },
+  {
+    label: "notshowin-matching",
+    content: BAREBONES_DESKTOP_ENTRY + "NotShowIn=FirefoxOS\n",
+    expected: Ci.nsIGNOMEShellService.DESKTOP_ENTRY_INVISIBLE,
+  },
+  {
+    label: "notshowin-notmatching",
+    content: BAREBONES_DESKTOP_ENTRY + "NotShowIn=another\n",
+    expected: Ci.nsIGNOMEShellService.DESKTOP_ENTRY_VISIBLE,
+  },
+];
+
+add_setup(async function setup() {
+  let unique = await IOUtils.createUniqueDirectory(
+    Services.dirsvc.get("TmpD", Ci.nsIFile).path,
+    "desktopEntryStatusTest"
+  );
+
+  let homeDir = PathUtils.join(unique, "data-home");
+  Services.env.set("XDG_DATA_HOME", homeDir);
+  gHomeDir = PathUtils.join(homeDir, "applications");
+  await IOUtils.makeDirectory(gHomeDir, { createAncestors: true });
+
+  let systemDir = PathUtils.join(unique, "data-system");
+  Services.env.set("XDG_DATA_DIRS", systemDir);
+  gSystemDir = PathUtils.join(systemDir, "applications");
+  await IOUtils.makeDirectory(gSystemDir, { createAncestors: true });
+
+  Services.env.set("XDG_CURRENT_DESKTOP", "FirefoxOS");
+
+  await IOUtils.writeUTF8(
+    PathUtils.join(gHomeDir, filename("deleted")),
+    BAREBONES_DESKTOP_ENTRY + "Hidden=true\n"
+  );
+  await IOUtils.writeUTF8(
+    PathUtils.join(gSystemDir, filename("deleted")),
+    BAREBONES_DESKTOP_ENTRY
+  );
+
+  for (const desktopEntry of kDesktopEntries) {
+    await IOUtils.writeUTF8(
+      PathUtils.join(gHomeDir, filename(desktopEntry.label + "-home")),
+      desktopEntry.content
+    );
+    await IOUtils.writeUTF8(
+      PathUtils.join(gSystemDir, filename(desktopEntry.label + "-system")),
+      desktopEntry.content
+    );
+  }
+
+  registerCleanupFunction(async () => {
+    return IOUtils.remove(unique, { recursive: true });
+  });
+});
+
+add_task(function test_desktopEntryStatus() {
+  Assert.equal(
+    ShellService.getDesktopEntryStatus(filename("absent")),
+    Ci.nsIGNOMEShellService.DESKTOP_ENTRY_ABSENT,
+    "A desktop entry that doesn't exist should be absent."
+  );
+  Assert.equal(
+    ShellService.getDesktopEntryStatus(filename("hidden")),
+    Ci.nsIGNOMEShellService.DESKTOP_ENTRY_ABSENT,
+    "A desktop entry shadowed by one with the Hidden= attribute should be absent."
+  );
+
+  for (const desktopEntry of kDesktopEntries) {
+    Assert.equal(
+      ShellService.getDesktopEntryStatus(
+        filename(desktopEntry.label + "-home")
+      ),
+      desktopEntry.expected,
+      "Desktop entry matches when at the local level: " + desktopEntry.label
+    );
+    Assert.equal(
+      ShellService.getDesktopEntryStatus(
+        filename(desktopEntry.label + "-system")
+      ),
+      desktopEntry.expected,
+      "Desktop entry matches when at the system level: " + desktopEntry.label
+    );
+  }
+});
diff --git a/src/zen/tests/mochitests/shell/unit/test_maybeCreateLaunchOnLoginOnFirstRun.js b/src/zen/tests/mochitests/shell/unit/test_maybeCreateLaunchOnLoginOnFirstRun.js
new file mode 100644
index 000000000..16106de4d
--- /dev/null
+++ b/src/zen/tests/mochitests/shell/unit/test_maybeCreateLaunchOnLoginOnFirstRun.js
@@ -0,0 +1,109 @@
+/* Any copyright is dedicated to the Public Domain.
+ * https://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+ChromeUtils.defineESModuleGetters(this, {
+  StartupOSIntegration:
+    "moz-src:///browser/components/shell/StartupOSIntegration.sys.mjs",
+  WindowsLaunchOnLogin: "resource://gre/modules/WindowsLaunchOnLogin.sys.mjs",
+  sinon: "resource://testing-common/Sinon.sys.mjs",
+});
+
+const PREF = "browser.startup.windowsLaunchOnLogin.defaultEnabled";
+
+async function runWith({ isFirstRun, prefValue, approved }) {
+  let sandbox = sinon.createSandbox();
+  let approvedStub = sandbox
+    .stub(WindowsLaunchOnLogin, "getLaunchOnLoginApproved")
+    .resolves(approved);
+  let createStub = sandbox
+    .stub(WindowsLaunchOnLogin, "createLaunchOnLogin")
+    .resolves();
+
+  if (prefValue === null) {
+    Services.prefs.clearUserPref(PREF);
+  } else {
+    Services.prefs.setBoolPref(PREF, prefValue);
+  }
+
+  try {
+    await StartupOSIntegration.maybeCreateLaunchOnLoginOnFirstRun(isFirstRun);
+    return { approvedStub, createStub };
+  } finally {
+    sandbox.restore();
+    Services.prefs.clearUserPref(PREF);
+  }
+}
+
+add_task(async function test_creates_when_all_conditions_true() {
+  let { createStub } = await runWith({
+    isFirstRun: true,
+    prefValue: true,
+    approved: true,
+  });
+  Assert.ok(
+    createStub.calledOnce,
+    "createLaunchOnLogin should be called when isFirstRun, pref, and approval are all true"
+  );
+});
+
+add_task(async function test_skips_when_not_first_run() {
+  let { createStub, approvedStub } = await runWith({
+    isFirstRun: false,
+    prefValue: true,
+    approved: true,
+  });
+  Assert.ok(
+    !createStub.called,
+    "createLaunchOnLogin should not be called when isFirstRun is false"
+  );
+  Assert.ok(
+    !approvedStub.called,
+    "getLaunchOnLoginApproved should be short-circuited when isFirstRun is false"
+  );
+});
+
+add_task(async function test_skips_when_pref_disabled() {
+  let { createStub, approvedStub } = await runWith({
+    isFirstRun: true,
+    prefValue: false,
+    approved: true,
+  });
+  Assert.ok(
+    !createStub.called,
+    "createLaunchOnLogin should not be called when pref is false"
+  );
+  Assert.ok(
+    !approvedStub.called,
+    "getLaunchOnLoginApproved should be short-circuited when pref is false"
+  );
+});
+
+add_task(async function test_skips_when_windows_policy_denies() {
+  let { createStub, approvedStub } = await runWith({
+    isFirstRun: true,
+    prefValue: true,
+    approved: false,
+  });
+  Assert.ok(
+    approvedStub.calledOnce,
+    "getLaunchOnLoginApproved should be consulted when pref and isFirstRun are true"
+  );
+  Assert.ok(
+    !createStub.called,
+    "createLaunchOnLogin should not be called when Windows policy denies"
+  );
+});
+
+add_task(async function test_uses_pref_default_when_unset() {
+  let { createStub } = await runWith({
+    isFirstRun: true,
+    prefValue: null,
+    approved: true,
+  });
+  Assert.ok(
+    createStub.calledOnce,
+    "createLaunchOnLogin should be called when pref is at its built-in default of true"
+  );
+});
diff --git a/src/zen/tests/mochitests/shell/unit/xpcshell.toml b/src/zen/tests/mochitests/shell/unit/xpcshell.toml
index 4b4a87edc..bfd6f01ea 100644
--- a/src/zen/tests/mochitests/shell/unit/xpcshell.toml
+++ b/src/zen/tests/mochitests/shell/unit/xpcshell.toml
@@ -5,6 +5,11 @@ run-if = [
 firefox-appdir = "browser"
 tags = "os_integration"
 
+["test_desktopEntryStatus.js"]
+run-if = [
+  "os == 'linux'",
+]
+
 ["test_linuxDesktopEntry.js"]
 run-if = [
   "os == 'linux'",
@@ -15,6 +20,11 @@ run-if = [
   "os == 'mac'",
 ]
 
+["test_maybeCreateLaunchOnLoginOnFirstRun.js"]
+run-if = [
+  "os == 'win'"
+]
+
 ["test_secondaryTileJs.js"]
 run-if = [
   "os == 'win'"
diff --git a/src/zen/tests/mochitests/tooltiptext/browser_input_file_tooltips.js b/src/zen/tests/mochitests/tooltiptext/browser_input_file_tooltips.js
index 2f1385f37..7e4cfb9a0 100644
--- a/src/zen/tests/mochitests/tooltiptext/browser_input_file_tooltips.js
+++ b/src/zen/tests/mochitests/tooltiptext/browser_input_file_tooltips.js
@@ -63,7 +63,7 @@ async function do_test(test) {
   if (test.value) {
     info("Creating mock filepicker to select files");
     let MockFilePicker = SpecialPowers.MockFilePicker;
-    MockFilePicker.init(window.browsingContext);
+    MockFilePicker.init();
     MockFilePicker.returnValue = MockFilePicker.returnOK;
     MockFilePicker.displayDirectory = FileUtils.getDir("TmpD", []);
     MockFilePicker.setFiles([tempFile]);
diff --git a/src/zen/tests/popover/browser.toml b/src/zen/tests/popover/browser.toml
index 756cc7fa3..fae0c68c0 100644
--- a/src/zen/tests/popover/browser.toml
+++ b/src/zen/tests/popover/browser.toml
@@ -3,10 +3,9 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 [DEFAULT]
-prefs = ["zen.view.mac.show-three-dot-menu=true"]
+prefs = ["zen.view.mac.show-three-dot-menu=true", "widget.macos.native-context-menus=true"]
 
 ["browser_popover_height_constraint.js"]
 run-if = [
   "os == 'mac'", # gh-12782
 ]
-prefs = ["widget.macos.native-context-menus=true"]
diff --git a/src/zen/tests/spaces/head.js b/src/zen/tests/spaces/head.js
index d8d160c20..4ecb614ee 100644
--- a/src/zen/tests/spaces/head.js
+++ b/src/zen/tests/spaces/head.js
@@ -528,7 +528,7 @@ function setScrollPosition(bc, x, y) {
       content.addEventListener(
         "mozvisualscroll",
         function onScroll(event) {
-          if (content.document.ownerGlobal.visualViewport == event.target) {
+          if (content.document.documentGlobal.visualViewport == event.target) {
             content.removeEventListener("mozvisualscroll", onScroll, {
               mozSystemGroup: true,
             });
@@ -576,7 +576,7 @@ function setPropertyOfFormField(browserContext, selector, propName, newValue) {
       node[propNameChild] = newValueChild;
 
       let event = node.ownerDocument.createEvent("UIEvents");
-      event.initUIEvent("input", true, true, node.ownerGlobal, 0);
+      event.initUIEvent("input", true, true, node.documentGlobal, 0);
       node.dispatchEvent(event);
     }
   );
@@ -678,7 +678,7 @@ async function openTabMenuFor(tab) {
   EventUtils.synthesizeMouseAtCenter(
     tab,
     { type: "contextmenu" },
-    tab.ownerGlobal
+    tab.documentGlobal
   );
   await tabMenuShown;
 
diff --git a/src/zen/tests/tabs/head.js b/src/zen/tests/tabs/head.js
index 76104f295..b4934d105 100644
--- a/src/zen/tests/tabs/head.js
+++ b/src/zen/tests/tabs/head.js
@@ -610,7 +610,7 @@ async function removeTabGroup(group) {
  * @returns {Promise<XULMenuElement|XULPopupElement>}
  */
 async function getContextMenu(triggerNode, contextMenuId) {
-  let win = triggerNode.ownerGlobal;
+  let win = triggerNode.documentGlobal;
   triggerNode.scrollIntoView({ behavior: "instant" });
   const contextMenu = win.document.getElementById(contextMenuId);
   const contextMenuShown = BrowserTestUtils.waitForPopupEvent(
diff --git a/src/zen/tests/urlbar/head.js b/src/zen/tests/urlbar/head.js
index 29eaebf2c..18c5bbefe 100644
--- a/src/zen/tests/urlbar/head.js
+++ b/src/zen/tests/urlbar/head.js
@@ -19,28 +19,28 @@ function selectWithMouseDrag(fromX, toX, win = window) {
     fromX,
     rect.height / 2,
     { type: "mousemove" },
-    target.ownerGlobal
+    target.documentGlobal
   );
   EventUtils.synthesizeMouse(
     target,
     fromX,
     rect.height / 2,
     { type: "mousedown" },
-    target.ownerGlobal
+    target.documentGlobal
   );
   EventUtils.synthesizeMouse(
     target,
     toX,
     rect.height / 2,
     { type: "mousemove" },
-    target.ownerGlobal
+    target.documentGlobal
   );
   EventUtils.synthesizeMouse(
     target,
     toX,
     rect.height / 2,
     { type: "mouseup" },
-    target.ownerGlobal
+    target.documentGlobal
   );
   return promise;
 }
diff --git a/src/zen/urlbar/ZenUBActionsProvider.sys.mjs b/src/zen/urlbar/ZenUBActionsProvider.sys.mjs
index 5fb7d1c4c..6814e1261 100644
--- a/src/zen/urlbar/ZenUBActionsProvider.sys.mjs
+++ b/src/zen/urlbar/ZenUBActionsProvider.sys.mjs
@@ -550,7 +550,7 @@ export class ZenUrlbarProviderGlobalActions extends UrlbarProvider {
     const result = details.result;
     const payload = result.payload;
     const command = payload.zenCommand;
-    const ownerGlobal = details.element.ownerGlobal;
+    const ownerGlobal = details.element.documentGlobal;
     ownerGlobal.gBrowser.selectedBrowser.focus();
     if (typeof command === "function") {
       command(ownerGlobal);
diff --git a/src/zen/welcome/ZenWelcome.mjs b/src/zen/welcome/ZenWelcome.mjs
index 533657b4d..d57446cc2 100644
--- a/src/zen/welcome/ZenWelcome.mjs
+++ b/src/zen/welcome/ZenWelcome.mjs
@@ -675,7 +675,7 @@
             .appendChild(anchor);
           gZenThemePicker.panel.setAttribute("noautohide", "true");
           gZenThemePicker.panel.setAttribute("consumeoutsideclicks", "false");
-          gZenThemePicker.panel.setAttribute("nonnativepopover", "true");
+          gZenThemePicker.panel.setAttribute("nonnative", "");
           gZenThemePicker.panel.addEventListener(
             "popupshowing",
             () => {
@@ -694,7 +694,7 @@
         async fadeOut() {
           gZenThemePicker.panel.removeAttribute("noautohide");
           gZenThemePicker.panel.removeAttribute("consumeoutsideclicks");
-          gZenThemePicker.panel.removeAttribute("nonnativepopover");
+          gZenThemePicker.panel.removeAttribute("nonnative");
           await animate(gZenThemePicker.panel, { opacity: [1, 0] });
           gZenThemePicker.panel.hidePopup();
           gZenThemePicker.panel.removeAttribute("style");
diff --git a/surfer.json b/surfer.json
index dab8b73a6..9bad4c169 100644
--- a/surfer.json
+++ b/surfer.json
@@ -6,7 +6,7 @@
   "version": {
     "product": "firefox",
     "version": "151.0.4",
-    "candidate": "151.0.4",
+    "candidate": "152.0",
     "candidateBuild": 1
   },
   "buildOptions": {