Revert "chore: Change the twilight release tag name to canary, b=no-bug, c=workflows"

This reverts commit d28622e749.

.github/workflows/build.yml

@@ -368,7 +368,7 @@ jobs:
     strategy:
       matrix:
         arch: [x86_64, aarch64]
-    needs: [linux]
+    needs: [linux, build-data]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -406,6 +406,8 @@ jobs:
             sed -i -e 's/StartupWMClass=zen/StartupWMClass=zen-twilight/g' build/AppDir/zen.desktop
           fi
 
+          sed -i -e 's/\$VERSION/${{ needs.build-data.outputs.version }}/g' build/AppDir/zen.desktop
+
           APPDIR=build/AppDir
           tar -xvf *.tar.* && rm -rf *.tar.*
           mv zen/* $APPDIR/

.github/workflows/linux-release-build.yml

@@ -92,7 +92,6 @@ jobs:
 
       - name: Fix Rust version
         run: |
-          # Install a rust version compatible with LLVM 18
           curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain $(cat .rust-toolchain)
           source $HOME/.cargo/env
 

.github/workflows/sync-upstream.yml

@@ -73,15 +73,13 @@ jobs:
             npm run sync
           fi
 
-      - name: Run formatter
+      - name: Install autopep8
-        if: steps.check-upstream-branch.outputs.branch_exists == 'false'
+        run: sudo apt install python3-autopep8
-        run: |
-          sudo apt install python3-autopep8
-          npm run pretty
 
       - name: Check if any files changed
         id: git-check
         run: |
+          npm run pretty
           if [ -n "$(git status --porcelain)" ]; then
             echo "files_changed=true" >> $GITHUB_OUTPUT
           else
@@ -111,6 +109,15 @@ jobs:
         if: steps.git-check.outputs.files_changed == 'true'
         run: python3 scripts/import_external_tests.py || true
 
+      - name: Import external patches
+        if: steps.git-check.outputs.files_changed == 'true'
+        run: python3 scripts/import_external_patches.py || true
+
+      - name: Run formatter
+        if: steps.check-upstream-branch.outputs.branch_exists == 'false'
+        run: |
+          npm run pretty
+
       - name: Create pull request
         uses: peter-evans/create-pull-request@v7
         if: steps.git-check.outputs.files_changed == 'true'

.prettierignore

@@ -37,5 +37,6 @@ src/zen/common/ZenEmojis.mjs
 
 src/zen/split-view/zen-decks.css
 src/zen/workspaces/zen-workspaces.css
+src/zen/common/styles/zen-toolbar.css
 
 *.inc

.rust-toolchain

@@ -1 +1 @@
-1.83
+1.89

README.md

@@ -34,8 +34,8 @@ 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 `147.0.3`! 🚀
+- [`Release`](https://zen-browser.app/download) - Is currently built using Firefox version `147.0.4`! 🚀
-- [`Twilight`](https://zen-browser.app/download?twilight) - Is currently built using Firefox version `RC 147.0.3`!
+- [`Twilight`](https://zen-browser.app/download?twilight) - Is currently built using Firefox version `RC 148.0`!
 
 ### Contributing
 

build/AppDir/zen.desktop

@@ -12,6 +12,7 @@ Terminal=false
 X-MultipleArgs=false
 Keywords=Internet;WWW;Browser;Web;Explorer;
 Actions=new-window;new-private-window;profilemanager;
+X-AppImage-Version=$VERSION
 
 [Desktop Action new-window]
 Name=Open a New Window

build/firefox-cache/l10n-last-commit-hash

@@ -1 +1 @@
-b1e00b74d3791a5a7bbd6ba3d32b69b60471e73b
+b7d21837fa8fcae98dab2a4f016cc9fb3053903d

build/flatpak/app.zen_browser.zen.yml.template

@@ -25,6 +25,7 @@ finish-args:
   - --filesystem=xdg-run/speech-dispatcher:ro
   - --device=all
   - --talk-name=org.freedesktop.FileManager1
+  - --talk-name=org.freedesktop.Notifications
   - --system-talk-name=org.freedesktop.NetworkManager
   - --talk-name=org.a11y.Bus
   - --talk-name=org.gtk.vfs.*
@@ -62,12 +63,6 @@ modules:
         strip-components: 0
         only-arches:
           - x86_64
-        x-checker-data:
-          type: json
-          url: https://api.github.com/repos/zen-browser/desktop/releases/latest
-          version-query: .tag_name
-          url-query: .assets[] | select(.name=="zen.linux-x86_64.tar.xz") | .browser_download_url
-          is-main-source: true
 
       - type: archive
         url: https://github.com/zen-browser/desktop/releases/download/{version}/zen.linux-aarch64.tar.xz
@@ -75,12 +70,6 @@ modules:
         strip-components: 0
         only-arches:
           - aarch64
-        x-checker-data:
-          type: json
-          url: https://api.github.com/repos/zen-browser/desktop/releases/latest
-          version-query: .tag_name
-          url-query: .assets[] | select(.name=="zen.linux-aarch64.tar.xz") | .browser_download_url
-          is-main-source: true
 
       - type: archive
         url: https://github.com/zen-browser/flatpak/releases/download/{version}/archive.tar

configs/common/mozconfig

@@ -9,9 +9,6 @@ ac_add_options --with-app-basename=Zen
 # Localization (Must be an absolute path)
 ac_add_options --with-l10n-base="${topsrcdir}/browser/locales"
 
-# See https://github.com/zen-browser/desktop/issues/11917 for future plans.
-# We should be removing this at some point and start supporting XDG dirs.
-ac_add_options --with-user-appdir=".${binName}"
 export MOZ_APP_BASENAME=Zen
 export MOZ_BRANDING_DIRECTORY=${brandingDir}
 export MOZ_OFFICIAL_BRANDING_DIRECTORY=${brandingDir}
@@ -85,6 +82,11 @@ if test "$ZEN_RELEASE"; then
   export MOZ_PACKAGE_JSSHELL=1
 
   ac_add_options --disable-crashreporter
+
+  # Experimental flag, enabled only on nightly for Firefox.
+  # Should bring in some nice performance improvements, 
+  # but may cause stability issues.
+  ac_add_options --enable-replace-malloc
 fi
 
 ac_add_options --enable-unverified-updates

configs/linux/mozconfig

@@ -30,17 +30,11 @@ if test "$ZEN_RELEASE"; then
     fi
 
     # Disable DMD and ELF hacks, enable linker lld
-    ac_add_options --disable-dmd
     ac_add_options --enable-linker=lld
     ac_add_options --disable-elf-hack
-    ac_add_options --disable-necko-wifi
 
     # Stripping options for release builds
     ac_add_options --enable-install-strip
     ac_add_options --enable-strip
     export STRIP_FLAGS="--strip-debug --strip-unneeded"
 fi
-
-# Common options
-ac_add_options --enable-alsa
-ac_add_options --enable-pulseaudio

locales/en-US/browser/browser/zen-general.ftl

@@ -6,7 +6,11 @@ zen-panel-ui-current-profile-text = current profile
 
 unified-extensions-description = Extensions are used to bring more extra functionality into { -brand-short-name }.
 tab-context-zen-reset-pinned-tab =
-    .label = Reset Pinned Tab
+    .label =
+        { $isEssential ->
+            [true] Reset Essential Tab
+           *[false] Reset Pinned Tab
+        }
     .accesskey = R
 tab-context-zen-add-essential =
     .label = Add to Essentials
@@ -16,7 +20,11 @@ tab-context-zen-remove-essential =
     .label = Remove from Essentials
     .accesskey = R
 tab-context-zen-replace-pinned-url-with-current =
-    .label = Replace Pinned URL with Current
+    .label =
+        { $isEssential ->
+            [true] Replace Essential URL with Current
+           *[false] Replace Pinned URL with Current
+        }
     .accesskey = C
 tab-context-zen-edit-title =
     .label = Change Label...
@@ -137,3 +145,7 @@ zen-window-sync-migration-dialog-title = Keep Your Windows in Sync
 zen-window-sync-migration-dialog-message = Zen now syncs windows on the same device, so changes in one window are reflected across the others instantly.
 zen-window-sync-migration-dialog-learn-more = Learn More
 zen-window-sync-migration-dialog-accept = Got It
+
+zen-appmenu-new-blank-window =
+    .label = New blank window
+

locales/en-US/browser/browser/zen-live-folders.ftl

@@ -0,0 +1,98 @@
+# 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/.
+
+zen-live-folder-options =
+    .label = Live Folder Options
+
+zen-live-folder-last-fetched =
+    .label = Last fetch: { $time }
+
+zen-live-folder-refresh =
+    .label = Refresh
+
+zen-live-folder-github-option-author-self =
+    .label = Created by Me
+
+zen-live-folder-github-option-assigned-self =
+    .label = Assigned to Me
+
+zen-live-folder-github-option-review-requested =
+    .label = Review Requests
+
+zen-live-folder-type-rss =
+    .label = RSS Feed
+
+zen-live-folder-option-fetch-interval =
+    .label = Fetch Interval
+
+zen-live-folder-fetch-interval-mins =
+    .label = { $mins ->
+      [one] 1 minute
+      *[other] { $mins } minutes
+    }
+
+zen-live-folder-fetch-interval-hours =
+    .label = { $hours ->
+      [one] 1 hour
+      *[other] { $hours } hours
+    }
+
+zen-live-folder-rss-option-time-range =
+    .label = Time Range
+
+zen-live-folder-time-range-hours =
+    .label = { $hours ->
+      [one] Last hour
+      *[other] Last { $hours } hours
+    }
+
+zen-live-folder-time-range-all-time =
+    .label = All time
+
+zen-live-folder-time-range-days =
+    .label = { $days ->
+      [one] Last day
+      *[other] Last { $days } days
+    }
+
+zen-live-folder-rss-option-item-limit =
+    .label = Item Limit
+
+zen-live-folder-rss-option-feed-url =
+    .label = Feed URL
+
+zen-live-folder-rss-prompt-feed-url = Please enter the feed URL
+
+zen-live-folder-rss-option-item-limit-num =
+    .label = { $limit } items
+
+zen-live-folder-failed-fetch =
+    .label = Failed to update
+    .tooltiptext = Failed to update. Try again.
+
+zen-live-folder-github-no-auth =
+    .label = Not signed in to GitHub
+    .tooltiptext = Sign back in to GitHub.
+
+zen-live-folder-github-no-filter =
+    .label = Filter is not set
+    .tooltiptext = No filter set, nothing will be fetched.
+
+zen-live-folder-rss-invalid-url-title = Failed to create the Live Folder
+zen-live-folder-rss-invalid-url-description = The feed URL is invalid. Check the address and try again
+
+zen-live-folder-github-option-repo-filter =
+    .label = Repositories
+
+zen-live-folder-github-option-repo =
+    .label = { $repo }
+
+zen-live-folder-github-pull-requests =
+    .label = Pull Requests
+
+zen-live-folder-github-issues =
+    .label = Issues
+
+zen-live-folder-github-option-repo-list-note =
+    .label = This list is generated based on your currently active pull requests.

locales/en-US/browser/browser/zen-menubar.ftl

@@ -22,5 +22,5 @@ zen-menubar-appearance-light =
 zen-menubar-appearance-dark =
     .label = Dark
 
-zen-menubar-new-unsynced-window =
+zen-menubar-new-blank-window =
-    .label = New blank window
+    .label = New Blank Window

locales/en-US/browser/browser/zen-split-view.ftl

@@ -16,7 +16,4 @@ zen-split-link =
 
 zen-split-view-modifier-header = Split View
 zen-split-view-modifier-activate-reallocation =
-    .label = Activate reallocation
+    .label = Activate reallocation
-zen-split-view-modifier-enabled-toast = Split view rearrange is ON.
-zen-split-view-modifier-enabled-toast-description = Drag and drop the view to rearrange. Press Esc to exit.
-zen-split-view-modifier-disabled-toast = Split view rearrange is OFF.

locales/en-US/browser/browser/zen-vertical-tabs.ftl

@@ -42,4 +42,9 @@ tabbrowser-reset-pin-button =
         [one] Reset and pin tab
         *[other] Reset and pin { $tabCount } tabs
     }
-tab-reset-pin-label = Back to pinned url
+
+zen-tab-sublabel =
+    { $tabSubtitle ->
+        [zen-default-pinned] Back to pinned url
+        *[other] { $tabSubtitle }
+    }

locales/en-US/browser/browser/zen-workspaces.ftl

@@ -13,6 +13,9 @@ zen-panel-ui-workspaces-create =
 zen-panel-ui-folder-create =
     .label = Create Folder
 
+zen-panel-ui-live-folder-create =
+    .label = Live Folder
+
 zen-panel-ui-new-empty-split =
     .label = New Split
 

package-lock.json

@@ -5610,9 +5610,9 @@
       }
     },
     "node_modules/lodash": {
-      "version": "4.17.21",
+      "version": "4.17.23",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
+      "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w==",
       "dev": true,
       "license": "MIT"
     },

prefs/privatefox/privacy.yaml

@@ -63,6 +63,10 @@
   value: false
   locked: true
 
+- name: browser.search.serpEventTelemetryCategorization.enabled
+  value: false
+  locked: true
+
 - name: browser.newtabpage.activity-stream.telemetry
   value: false
   locked: true

prefs/zen/folders.yaml

@@ -6,7 +6,7 @@
   value: true
 
 - name: zen.folders.search.hover-delay
-  value: 700 # ms
+  value: 500 # ms
 
 - name: zen.folders.max-subfolders
   value: 5

prefs/zen/gtk.yaml

@@ -4,7 +4,9 @@
 
 # GTK-specific preferences
 - name: widget.gtk.rounded-bottom-corners.enabled
-  value: true
+  # Disabled for https://github.com/zen-browser/desktop/issues/6302,
+  # also see https://bugzilla.mozilla.org/show_bug.cgi?id=1979083
+  value: false
   condition: "defined(MOZ_WIDGET_GTK)"
 
 - name: zen.widget.linux.transparency

prefs/zen/view.yaml

@@ -54,3 +54,6 @@
 
 - name: zen.view.draggable-sidebar
   value: true
+
+- name: zen.view.overflow-webext-toolbar
+  value: "@IS_TWILIGHT@"

prefs/zen/zen-urlbar.yaml

@@ -32,6 +32,9 @@
 - name: zen.urlbar.show-pip-button
   value: false
 
+- name: zen.urlbar.open-on-startup
+  value: true
+
 # Mark: Zen suggestions controls
 
 - name: zen.urlbar.suggestions.quick-actions

scripts/download_phab_patch.py

@@ -1,41 +0,0 @@
-# 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/.
-
-import os
-import sys
-import requests
-
-BASE_URI = "https://phabricator.services.mozilla.com"
-OUTPUT_DIR = os.path.join(os.getcwd(), "src", "firefox-patches")
-
-
-def download_phab_patch(phab_id, output_file):
-  """Download a Phabricator patch by its ID and save it to output_file."""
-  patch_url = f"{BASE_URI}/{phab_id}?download=true"
-  try:
-    print(f"Downloading patch from {patch_url}")
-    response = requests.get(patch_url)
-    response.raise_for_status()  # Raise an error for bad responses
-    with open(output_file, 'wb') as f:
-      f.write(response.content)
-    print(f"Patch saved to {output_file}")
-  except requests.RequestException as e:
-    print(f"Error downloading patch: {e}")
-    sys.exit(1)
-
-
-def main():
-  if len(sys.argv) < 2:
-    print("Usage: python download_phab_patch.py <PHABRICATOR_ID> [output_file]", file=sys.stderr)
-    sys.exit(1)
-
-  phab_id = sys.argv[1]
-  output_file = sys.argv[2] if len(sys.argv) > 2 else f"phab_{phab_id}"
-  output_file = os.path.join(OUTPUT_DIR, output_file + ".patch")
-
-  download_phab_patch(phab_id, output_file)
-
-
-if __name__ == "__main__":
-  main()

scripts/import_external_tests.py

@@ -18,10 +18,18 @@ FILE_PREFIX = """
 # This file is autogenerated by scripts/import_external_tests.py
 # Do not edit manually.
 
+"""
+
+BROWSER_MANIFEST_LIST_PREFIX = """
 BROWSER_CHROME_MANIFESTS += [
 """
 
+XPCSHELL_MANIFESTS_LIST_PREFIX = """
+XPCSHELL_TESTS_MANIFESTS += [
+"""
+
 FILE_SUFFIX = "]"
+VALID_MANIFEST_FILES = ["browser.toml", "xpcshell.toml"]
 
 
 def get_tests_manifest():
@@ -38,12 +46,17 @@ def validate_tests_path(path, files, ignore_list):
   for ignore in ignore_list:
     if ignore not in files:
       die_with_error(f"Ignore file '{ignore}' not found in tests folder '{path}'")
-  if "browser.toml" not in files or "browser.js" in ignore_list:
+  if not any(manifest_file in files for manifest_file in VALID_MANIFEST_FILES):
-    die_with_error(f"'browser.toml' not found in tests folder '{path}'")
+    die_with_error(f"None of the valid manifest files {VALID_MANIFEST_FILES} found in tests folder '{path}'")
 
 
 def disable_and_replace_manifest(manifest, output_path):
-  toml_file = os.path.join(output_path, "browser.toml")
+  toml_file = None
+  for manifest_file in VALID_MANIFEST_FILES:
+    candidate = os.path.join(output_path, manifest_file)
+    if os.path.exists(candidate):
+      toml_file = candidate
+      break
   disabled_tests = manifest.get("disable", [])
   with open(toml_file, "r") as f:
     data = f.read()
@@ -90,8 +103,17 @@ def write_moz_build_file(manifest):
   print(f"Writing moz.build file to '{moz_build_path}'")
   with open(moz_build_path, "w") as f:
     f.write(FILE_PREFIX)
+    f.write(BROWSER_MANIFEST_LIST_PREFIX)
     for test_suite in manifest.keys():
-      f.write(f'\t"{test_suite}/browser.toml",\n')
+      # add for browser.toml first
+      if not manifest[test_suite].get("xpcshell", False):
+        f.write(f'\t"{test_suite}/browser.toml",\n')
+    f.write(FILE_SUFFIX)
+    f.write(XPCSHELL_MANIFESTS_LIST_PREFIX)
+    for test_suite in manifest.keys():
+      # add for xpcshell.toml
+      if manifest[test_suite].get("xpcshell", False):
+        f.write(f'\t"{test_suite}/xpcshell.toml",\n')
     f.write(FILE_SUFFIX)
 
 

scripts/recalculate-patches.sh

@@ -11,6 +11,7 @@ npm run import
 IGNORE_FILES=(
   "shared.nsh"
   "ignorePrefs.json"
+  "moz.configure"
 )
 
 # Recursively find all .patch files in the current directory and its subdirectories

scripts/run_tests.py

@@ -56,7 +56,7 @@ def main():
   os.chdir(engine_dir)
 
   def run_mach_with_paths(test_paths):
-    command = ['./mach', 'mochitest'] + other_args + test_paths
+    command = ['./mach', 'test'] + other_args + test_paths
     # Replace the current process with the mach command
     os.execvp(command[0], command)
 

scripts/update_external_patches.py

@@ -0,0 +1,99 @@
+# 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/.
+
+import os
+import sys
+import json
+import requests
+from json_with_comments import JSONWithCommentsDecoder
+
+BASE_URI = "https://phabricator.services.mozilla.com"
+OUTPUT_DIR = os.path.join(os.getcwd(), "src", "external-patches")
+
+
+def die(message):
+  print(f"Error: {message}")
+  sys.exit(1)
+
+
+def download_phab_patch(phab_id, output_file):
+  """Download a Phabricator patch by its ID and save it to output_file."""
+  patch_url = f"{BASE_URI}/{phab_id}?download=true"
+  try:
+    print(f"Downloading patch from {patch_url}")
+    response = requests.get(patch_url)
+    response.raise_for_status()  # Raise an error for bad responses
+    with open(output_file, 'wb') as f:
+      f.write(response.content)
+    print(f"Patch saved to {output_file}")
+  except requests.RequestException as e:
+    die(f"Failed to download patch {phab_id}: {e}")
+
+
+def download_patch_from_url(url, output_file):
+  """Download a patch from a given URL and save it to output_file."""
+  try:
+    print(f"Downloading patch from {url}")
+    response = requests.get(url)
+    response.raise_for_status()  # Raise an error for bad responses
+    with open(output_file, 'wb') as f:
+      f.write(response.content)
+    print(f"Patch saved to {output_file}")
+  except requests.RequestException as e:
+    die(f"Failed to download patch from {url}: {e}")
+
+
+def main():
+  with open(os.path.join(OUTPUT_DIR, "manifest.json"), 'r') as f:
+    manifest = json.load(f, cls=JSONWithCommentsDecoder)
+
+  expected_files = set()
+  for patch in manifest:
+    if patch.get("type") == "phabricator":
+      phab_id = patch.get("id")
+      name = patch.get("name")
+      if not phab_id or not name:
+        die(f"Patch entry missing 'id' or 'name': {patch}")
+      name = name.replace(" ", "_").lower()
+      output_file = os.path.join(OUTPUT_DIR, "firefox", f"{name}.patch")
+      print(f"Processing Phabricator patch: {phab_id} -> {output_file}")
+      download_phab_patch(phab_id, output_file)
+      expected_files.add(output_file)
+    elif patch.get("type") == "local":
+      print(f"Local patch: {patch.get('path')}")
+      expected_files.add(os.path.join(OUTPUT_DIR, patch.get("path")))
+    elif patch.get("type") == "patch":
+      url = patch.get("url")
+      dest = patch.get("dest")
+      if not url or not dest:
+        die(f"Patch entry missing 'url' or 'dest': {patch}")
+      filename = url.split("/")[-1]
+      output_file = os.path.join(OUTPUT_DIR, dest, filename)
+      download_patch_from_url(url, output_file)
+      replaces = patch.get("replaces", {})
+      for replace in replaces.keys():
+        value = replaces[replace]
+        with open(output_file, 'r') as f:
+          content = f.read()
+        if replace not in content:
+          die(f"Replace string '{replace}' not found in {output_file}")
+        with open(output_file, 'w') as f:
+          f.write(content.replace(replace, value))
+      expected_files.add(output_file)
+    else:
+      die(f"Unknown patch type: {patch.get('type')}")
+
+  # Check for unexpected files in the output directory
+  # and remove them if they are not in the expected_files set.
+  for root, dirs, files in os.walk(OUTPUT_DIR):
+    for file in files:
+      if file.endswith(".patch"):
+        file_path = os.path.join(root, file)
+        if file_path not in expected_files:
+          print(f"Removing unexpected patch file: {file_path}")
+          os.remove(file_path)
+
+
+if __name__ == "__main__":
+  main()

src/Cargo-lock.patch

@@ -1,5 +1,5 @@
 diff --git a/Cargo.lock b/Cargo.lock
-index 723445447f491058784992e66245e0e0f8e61e19..02816c1df3e20d96ce68f16970b8a6e38080533e 100644
+index abc04e6a8e1e68fa71c6de0375f8e953e6369d8b..7bdfb41e255fc12065de064162e9bf9e15d7ff12 100644
 --- a/Cargo.lock
 +++ b/Cargo.lock
 @@ -4214,8 +4214,6 @@ dependencies = [

src/Cargo-toml.patch

@@ -1,13 +1,13 @@
 diff --git a/Cargo.toml b/Cargo.toml
-index 35e725043bce0b39fea550e8fb2b0ae1ff752e43..abac2042d537fcc1ce26e0e3acbf98fc2975b793 100644
+index ab9eda43302a6281e59a2738170e77bb0f0b1b90..3389f1c744b56e3a6a4eb3f05b0601bed4538fa1 100644
 --- a/Cargo.toml
 +++ b/Cargo.toml
-@@ -237,6 +237,8 @@ moz_asserts = { path = "mozglue/static/rust/moz_asserts" }
+@@ -240,6 +240,8 @@ moz_asserts = { path = "mozglue/static/rust/moz_asserts" }
  # Workaround for https://github.com/rust-lang/cargo/issues/11232
  rure = { path = "third_party/rust/rure" }
  
 +mime_guess = { path = "third_party/rust/mime_guess" }
 +
- # Patch `unicode-width` 0.1.* to 0.2.
+ # To-be-published changes.
- unicode-width = { path = "build/rust/unicode-width" }
+ unicode-bidi = { git = "https://github.com/servo/unicode-bidi", rev = "ca612daf1c08c53abe07327cb3e6ef6e0a760f0c" }
- 
+ nss-gk-api = { git = "https://github.com/beurdouche/nss-gk-api", rev = "e48a946811ffd64abc78de3ee284957d8d1c0d63" }

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 288a79e5fb4da24cffcb30fb4b8adc9604b15d26..bf9bd3e666dfb6298dbeec0546cae223a7bc68f0 100644
+index 0186e3a6508fc8e40f93619d8b3e5a0c003cbd4a..1f4fa115e591cfbe3e23d4ce880be66277a50a26 100644
 --- a/browser/base/content/browser-init.js
 +++ b/browser/base/content/browser-init.js
-@@ -200,6 +200,7 @@ var gBrowserInit = {
+@@ -243,6 +243,7 @@ var gBrowserInit = {
    },
  
    onLoad() {
@@ -10,7 +10,7 @@ index 288a79e5fb4da24cffcb30fb4b8adc9604b15d26..bf9bd3e666dfb6298dbeec0546cae223
      gBrowser.addEventListener("DOMUpdateBlockedPopups", e =>
        PopupAndRedirectBlockerObserver.handleEvent(e)
      );
-@@ -375,6 +376,7 @@ var gBrowserInit = {
+@@ -433,6 +434,7 @@ var gBrowserInit = {
  
      this._handleURIToLoad();
  

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 16cf3e201358d24c9216f9b06b0ba3b89684d32a..2cfa507bbdc96b8a293b18595d0beae031fe6119 100644
+index e2e0526a0ddd617291f1f6c17bcfb807954b481f..c3d2afff6eaa788309d1c1a7fa40f9b8b4f0fffe 100644
 --- a/browser/base/content/browser.js
 +++ b/browser/base/content/browser.js
 @@ -33,6 +33,7 @@ ChromeUtils.defineESModuleGetters(this, {
@@ -10,7 +10,7 @@ index 16cf3e201358d24c9216f9b06b0ba3b89684d32a..2cfa507bbdc96b8a293b18595d0beae0
    DevToolsSocketStatus:
      "resource://devtools/shared/security/DevToolsSocketStatus.sys.mjs",
    DownloadUtils: "resource://gre/modules/DownloadUtils.sys.mjs",
-@@ -819,7 +820,12 @@ function UpdateBackForwardCommands(aWebNavigation) {
+@@ -814,7 +815,12 @@ function UpdateBackForwardCommands(aWebNavigation) {
  
    var backDisabled = backCommand.hasAttribute("disabled");
    var forwardDisabled = forwardCommand.hasAttribute("disabled");
@@ -24,7 +24,7 @@ index 16cf3e201358d24c9216f9b06b0ba3b89684d32a..2cfa507bbdc96b8a293b18595d0beae0
      if (backDisabled) {
        backCommand.removeAttribute("disabled");
      } else {
-@@ -2305,6 +2311,8 @@ var XULBrowserWindow = {
+@@ -2301,6 +2307,8 @@ var XULBrowserWindow = {
      AboutReaderParent.updateReaderButton(gBrowser.selectedBrowser);
      TranslationsParent.onLocationChange(gBrowser.selectedBrowser);
  
@@ -33,7 +33,7 @@ index 16cf3e201358d24c9216f9b06b0ba3b89684d32a..2cfa507bbdc96b8a293b18595d0beae0
      PictureInPicture.updateUrlbarToggle(gBrowser.selectedBrowser);
  
      if (!gMultiProcessBrowser) {
-@@ -3818,7 +3826,7 @@ function warnAboutClosingWindow() {
+@@ -3821,7 +3829,7 @@ function warnAboutClosingWindow() {
  
    if (!isPBWindow && !toolbar.visible) {
      return gBrowser.warnAboutClosingTabs(
@@ -42,7 +42,7 @@ index 16cf3e201358d24c9216f9b06b0ba3b89684d32a..2cfa507bbdc96b8a293b18595d0beae0
        gBrowser.closingTabsEnum.ALL
      );
    }
-@@ -3858,7 +3866,7 @@ function warnAboutClosingWindow() {
+@@ -3861,7 +3869,7 @@ function warnAboutClosingWindow() {
      return (
        isPBWindow ||
        gBrowser.warnAboutClosingTabs(
@@ -51,7 +51,7 @@ index 16cf3e201358d24c9216f9b06b0ba3b89684d32a..2cfa507bbdc96b8a293b18595d0beae0
          gBrowser.closingTabsEnum.ALL
        )
      );
-@@ -3883,7 +3891,7 @@ function warnAboutClosingWindow() {
+@@ -3886,7 +3894,7 @@ function warnAboutClosingWindow() {
      AppConstants.platform != "macosx" ||
      isPBWindow ||
      gBrowser.warnAboutClosingTabs(
@@ -60,7 +60,7 @@ index 16cf3e201358d24c9216f9b06b0ba3b89684d32a..2cfa507bbdc96b8a293b18595d0beae0
        gBrowser.closingTabsEnum.ALL
      )
    );
-@@ -4806,6 +4814,9 @@ var ConfirmationHint = {
+@@ -4809,6 +4817,9 @@ var ConfirmationHint = {
      MozXULElement.insertFTLIfNeeded("toolkit/branding/brandings.ftl");
      MozXULElement.insertFTLIfNeeded("browser/confirmationHints.ftl");
      document.l10n.setAttributes(this._message, messageId, options.l10nArgs);

src/browser/base/content/browser-sets-inc.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/base/content/browser-sets.inc b/browser/base/content/browser-sets.inc
-index 139f7c2617f5e4843e0072435818c859def2f6bb..6ac1467b4117e2d76102d6977f13268827b4588f 100644
+index df768aaa77a6986260da5052ed14c8403d48de6b..a30e3a2784a6215c959d23802b5c2c966f89ca10 100644
 --- a/browser/base/content/browser-sets.inc
 +++ b/browser/base/content/browser-sets.inc
-@@ -413,3 +413,4 @@
+@@ -414,3 +414,4 @@
           internal="true"/>
  #endif
    </keyset>

src/browser/base/content/browser-sets-js.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/base/content/browser-sets.js b/browser/base/content/browser-sets.js
-index 94a05a510204c027e482fda33deaf3dc0d7471c9..79d37a7c7f29739d3ad2d9f6a3b3b8d638836b10 100644
+index 50845ebd925955bf9646fc499b9828eccbf266ef..5482a24576ebcd4382409cae01a4c6bcbd88a96c 100644
 --- a/browser/base/content/browser-sets.js
 +++ b/browser/base/content/browser-sets.js
-@@ -266,7 +266,7 @@ document.addEventListener(
+@@ -270,7 +270,7 @@ document.addEventListener(
          }
        });
  
@@ -11,3 +11,12 @@ index 94a05a510204c027e482fda33deaf3dc0d7471c9..79d37a7c7f29739d3ad2d9f6a3b3b8d6
        const SIDEBAR_REVAMP_PREF = "sidebar.revamp";
        const SIDEBAR_REVAMP_ENABLED = Services.prefs.getBoolPref(
          SIDEBAR_REVAMP_PREF,
+@@ -308,6 +308,8 @@ document.addEventListener(
+               panel: SidebarController.currentID,
+               opened: SidebarController._state.launcherExpanded,
+             });
++          } else {
++            SidebarController.toggle();
+           }
+           break;
+         case "key_gotoHistory":

src/browser/base/content/browser-siteIdentity-js.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/base/content/browser-siteIdentity.js b/browser/base/content/browser-siteIdentity.js
-index 8369e546866aa313e62f808acb8d51afa8da4f9b..7a4b20dd5922425cebfac542893a52cd68a26449 100644
+index 6d2052e060896bb5e91ba84c15bf14c969340935..6ceef1806e2d88cd7e2ebc867d633e9148f3b298 100644
 --- a/browser/base/content/browser-siteIdentity.js
 +++ b/browser/base/content/browser-siteIdentity.js
-@@ -451,11 +451,6 @@ var gIdentityHandler = {
+@@ -464,11 +464,6 @@ var gIdentityHandler = {
      // avoid a pretty ugly transition. Also hide it even
      // if the update resulted in no site data, to keep the
      // illusion that clicking the button had an effect.
@@ -14,7 +14,7 @@ index 8369e546866aa313e62f808acb8d51afa8da4f9b..7a4b20dd5922425cebfac542893a52cd
  
      let baseDomain = SiteDataManager.getBaseDomainFromHost(this._uri.host);
      if (SiteDataManager.promptSiteDataRemoval(window, [baseDomain])) {
-@@ -832,7 +827,7 @@ var gIdentityHandler = {
+@@ -847,7 +842,7 @@ var gIdentityHandler = {
        // This is a secure internal Firefox page.
        this._identityBox.className = "chromeUI";
        let brandBundle = document.getElementById("bundle_brand");
@@ -23,7 +23,7 @@ index 8369e546866aa313e62f808acb8d51afa8da4f9b..7a4b20dd5922425cebfac542893a52cd
      } else if (this._pageExtensionPolicy) {
        // This is a WebExtension page.
        this._identityBox.className = "extensionPage";
-@@ -1161,6 +1156,12 @@ var gIdentityHandler = {
+@@ -1190,6 +1185,12 @@ var gIdentityHandler = {
        }
      }
  

src/browser/base/content/browser-xhtml.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/browser.xhtml b/browser/base/content/browser.xhtml
-index ac82dcd286b5502d1ba38ed740813db08941eb7b..c26b3f0468ee6acd7716d4e8a24ad8cc84fce186 100644
+index 832d98f911e0bd0e231421332a521bfefea72ef8..a9955256c81b252fe0527ae5857c9283e2518274 100644
 --- a/browser/base/content/browser.xhtml
 +++ b/browser/base/content/browser.xhtml
 @@ -19,6 +19,7 @@
@@ -10,7 +10,7 @@ index ac82dcd286b5502d1ba38ed740813db08941eb7b..c26b3f0468ee6acd7716d4e8a24ad8cc
          persist="screenX screenY width height sizemode"
          data-l10n-sync="true">
  <head>
-@@ -99,8 +100,10 @@
+@@ -100,8 +101,10 @@
  
    <title data-l10n-id="browser-main-window-default-title"></title>
  
@@ -21,7 +21,7 @@ index ac82dcd286b5502d1ba38ed740813db08941eb7b..c26b3f0468ee6acd7716d4e8a24ad8cc
  </head>
  <html:body xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  # All sets except for popupsets (commands, keys, and stringbundles)
-@@ -133,9 +136,11 @@
+@@ -134,9 +137,11 @@
      </vbox>
    </html:template>
  

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 79b604c5965ba03762acbf085c9288c73001ec24..d75d5481e5de93c592850e39d4b0b4fd07e12678 100644
+index 0d73eb17b340001312a885ea10f5d6ad871f14d2..475824a0f9a4bbc15dc9bc7f1d2a09a51e58bc65 100644
 --- a/browser/base/content/main-popupset.inc.xhtml
 +++ b/browser/base/content/main-popupset.inc.xhtml
-@@ -226,6 +226,10 @@
+@@ -234,6 +234,10 @@
             hidden="true"
             tabspecific="true"
             aria-labelledby="editBookmarkPanelTitle">
@@ -13,7 +13,7 @@ index 79b604c5965ba03762acbf085c9288c73001ec24..d75d5481e5de93c592850e39d4b0b4fd
        <box class="panel-header">
          <html:h1>
            <html:span id="editBookmarkPanelTitle"/>
-@@ -251,6 +255,7 @@
+@@ -259,6 +263,7 @@
                    class="footer-button"/>
          </html:moz-button-group>
        </vbox>
@@ -21,7 +21,7 @@ index 79b604c5965ba03762acbf085c9288c73001ec24..d75d5481e5de93c592850e39d4b0b4fd
      </panel>
    </html:template>
  
-@@ -656,6 +661,8 @@
+@@ -678,6 +683,8 @@
  
  #include popup-notifications.inc.xhtml
  

src/browser/base/content/navigator-toolbox-inc-xhtml.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/navigator-toolbox.inc.xhtml b/browser/base/content/navigator-toolbox.inc.xhtml
-index 68c24f730d56f548cf1e286198a04f8363529378..71418c93ce7216d71412f2fa67295322bb73abad 100644
+index 4d4223c508560136aba220adb18528aac913a188..7e7432f7adb761a598d3e3e5ca4c6385a3bfe223 100644
 --- a/browser/base/content/navigator-toolbox.inc.xhtml
 +++ b/browser/base/content/navigator-toolbox.inc.xhtml
 @@ -2,7 +2,7 @@
@@ -11,27 +11,28 @@ index 68c24f730d56f548cf1e286198a04f8363529378..71418c93ce7216d71412f2fa67295322
    <script src="chrome://browser/content/navigator-toolbox.js" />
  
    <!-- Menu -->
-@@ -18,9 +18,8 @@
+@@ -18,9 +18,9 @@
  #include browser-menubar.inc
      </toolbaritem>
      <spacer flex="1" skipintoolbarset="true" style="order: 1000;"/>
 -#include titlebar-items.inc.xhtml
    </toolbar>
--
+ 
 +<hbox id="titlebar">
    <toolbar id="TabsToolbar"
             class="browser-toolbar browser-titlebar"
             fullscreentoolbar="true"
-@@ -62,6 +61,8 @@
+@@ -62,6 +62,9 @@
            <html:sidebar-pins-promo id="drag-to-pin-promo-card"></html:sidebar-pins-promo>
            <arrowscrollbox id="pinned-tabs-container" orient="horizontal" clicktoscroll=""></arrowscrollbox>
            <splitter orient="vertical" id="vertical-pinned-tabs-splitter" resizebefore="sibling" resizeafter="none" hidden="true"/>
++<html:div id="zen-overflow-extensions-list" skipintoolbarset="true"></html:div>
 +<html:div id="zen-essentials" skipintoolbarset="true"></html:div>
 +<html:div id="zen-tabs-wrapper">
            <hbox class="tab-drop-indicator" hidden="true"/>
            <arrowscrollbox id="tabbrowser-arrowscrollbox" orient="horizontal" flex="1" clicktoscroll="" scrolledtostart="" scrolledtoend="">
              <tab is="tabbrowser-tab" class="tabbrowser-tab" selected="true" visuallyselected="" fadein=""/>
-@@ -81,6 +82,7 @@
+@@ -81,6 +84,7 @@
                                tooltip="dynamic-shortcut-tooltip"
                                data-l10n-id="tabs-toolbar-new-tab"/>
            <html:span id="tabbrowser-tab-a11y-desc" hidden="true"/>
@@ -39,8 +40,8 @@ index 68c24f730d56f548cf1e286198a04f8363529378..71418c93ce7216d71412f2fa67295322
          </tabs>
  
          <toolbarbutton id="new-tab-button"
-@@ -106,9 +108,10 @@
+@@ -114,9 +118,10 @@
- #include private-browsing-indicator.inc.xhtml
+ 
      <toolbarbutton class="content-analysis-indicator toolbarbutton-1 content-analysis-indicator-icon"/>
  
 -#include titlebar-items.inc.xhtml

src/browser/base/content/nsContextMenu-sys-mjs.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/base/content/nsContextMenu.sys.mjs b/browser/base/content/nsContextMenu.sys.mjs
-index d9fbd3a9a78c993c89efa75be9e2ffc975158aba..e64382b32580c2d113774e76e3587002ce0aebad 100644
+index 90c8d48fa992ca5ac125fa2998741db79264de4a..a598431671e42b9ede23b0595790564202408a8e 100644
 --- a/browser/base/content/nsContextMenu.sys.mjs
 +++ b/browser/base/content/nsContextMenu.sys.mjs
 @@ -371,6 +371,9 @@ export class nsContextMenu {

src/browser/base/content/zen-assets.inc.xhtml

@@ -51,3 +51,4 @@
 <script type="module" src="chrome://browser/content/zen-components/ZenFolders.mjs"></script>
 <script type="module" src="chrome://browser/content/zen-components/ZenDownloadAnimation.mjs"></script>
 <script type="module" src="chrome://browser/content/zen-components/ZenEmojiPicker.mjs"></script>
+<script type="module" src="chrome://browser/content/zen-components/ZenLiveFoldersUI.mjs"></script>

src/browser/base/content/zen-assets.jar.inc.mn

@@ -18,3 +18,4 @@
 #include ../../../zen/images/jar.inc.mn
 #include ../../../zen/vendor/jar.inc.mn
 #include ../../../zen/fonts/jar.inc.mn
+#include ../../../zen/live-folders/jar.inc.mn

src/browser/base/content/zen-commands.inc.xhtml

@@ -63,4 +63,6 @@
   <command id="cmd_zenCloseUnpinnedTabs" />
 
   <command id="cmd_zenNewNavigatorUnsynced" />
+
+  <command id="cmd_zenNewLiveFolder" />
 </commandset>

src/browser/base/content/zen-locales.inc.xhtml

@@ -9,4 +9,5 @@
 <link rel="localization" href="browser/zen-menubar.ftl"/>
 <link rel="localization" href="browser/zen-vertical-tabs.ftl"/>
 <link rel="localization" href="browser/zen-folders.ftl"/>
+<link rel="localization" href="browser/zen-live-folders.ftl"/>
 </linkset>

src/browser/base/content/zen-panels/folders-search.inc

@@ -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/.
 
-<panel id="zen-folder-tabs-popup" type="arrow" orient="vertical">
+<panel id="zen-folder-tabs-popup" type="arrow" orient="vertical" side="left">
   <hbox class="tabs-list-header" flex="1">
     <image class="zen-folder-tabs-list-search-icon" src="chrome://global/skin/icons/search-glass.svg"/>
     <html:input id="zen-folder-tabs-list-search" 

src/browser/base/content/zen-panels/popups.inc

@@ -3,6 +3,23 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 <menupopup id="zenCreateNewPopup">
+  <menu data-l10n-id="zen-panel-ui-live-folder-create" id="zen-panel-ui-live-folder-create">
+    <menupopup>
+      <menuitem
+        data-l10n-id="zen-live-folder-github-pull-requests"
+        command="cmd_zenNewLiveFolder"
+        image="chrome://browser/content/zen-images/favicons/github.svg" />
+      <menuitem
+        data-l10n-id="zen-live-folder-github-issues"
+        command="cmd_zenNewLiveFolder"
+        image="chrome://browser/content/zen-images/favicons/github.svg" />
+      <menuitem
+        data-l10n-id="zen-live-folder-type-rss"
+        command="cmd_zenNewLiveFolder"
+        image="chrome://browser/skin/zen-icons/selectable/logo-rss.svg"/>
+    </menupopup>
+  </menu>
+  <menuseparator/>
   <menuitem data-l10n-id="zen-panel-ui-workspaces-create" command="cmd_zenOpenWorkspaceCreation" image="chrome://browser/skin/zen-icons/duplicate-tab.svg" />
   <menuitem data-l10n-id="zen-panel-ui-folder-create" command="cmd_zenOpenFolderCreation" image="chrome://browser/skin/zen-icons/folder.svg" />
   <menuseparator/>
@@ -35,6 +52,12 @@
 </menupopup>
 
 <menupopup id="zenFolderActions">
+  <menu id="context_zenLiveFolderOptions"
+    data-l10n-id="zen-live-folder-options"
+    hidden="true">
+    <menupopup />
+  </menu>
+  <menuseparator id="live-folder-separator" hidden="true"/>
   <menuitem id="context_zenFolderRename" data-l10n-id="zen-folders-panel-rename-folder"/>
   <menuitem id="context_zenFolderChangeIcon" data-l10n-id="tab-context-zen-edit-icon"/>
   <menuseparator />

src/browser/components/BrowserContentHandler-sys-mjs.patch

@@ -0,0 +1,41 @@
+diff --git a/browser/components/BrowserContentHandler.sys.mjs b/browser/components/BrowserContentHandler.sys.mjs
+index 2152327b42c884456785ef065422e3ca6cc8c50b..932150495d23c0a63987abf14b3dc8a12eb42d6c 100644
+--- a/browser/components/BrowserContentHandler.sys.mjs
++++ b/browser/components/BrowserContentHandler.sys.mjs
+@@ -603,6 +603,28 @@ nsBrowserContentHandler.prototype = {
+       }
+     }
+ 
++    try {
++      let blankWindowParam = cmdLine.handleFlagWithParam("blank-window", false);
++      if (blankWindowParam !== null) {
++        let { uri, principal } = resolveURIInternal(cmdLine, blankWindowParam);
++        if (shouldLoadURI(uri)) {
++          let win = openBrowserWindow(cmdLine, principal, uri.spec);
++          win._zenStartupSyncFlag = 'unsynced';
++          cmdLine.preventDefault = true;
++        }
++      }
++    } catch (e) {
++      if (e.result != Cr.NS_ERROR_INVALID_ARG) {
++        throw e;
++      }
++      if (cmdLine.handleFlag("blank-window", false)) {
++        let win = openBrowserWindow(cmdLine, null, null);
++        win._zenStartupSyncFlag = 'unsynced';
++        cmdLine.preventDefault = true;
++      }
++    }
++
++
+     var searchParam = cmdLine.handleFlagWithParam("search", false);
+     if (searchParam) {
+       doSearch(searchParam, cmdLine);
+@@ -672,6 +694,7 @@ nsBrowserContentHandler.prototype = {
+       "  --new-window <url> Open <url> in a new window.\n" +
+       "  --new-tab <url>    Open <url> in a new tab.\n" +
+       "  --private-window [<url>] Open <url> in a new private window.\n";
++    info += "  --blank-window [<url>]  Open the new blank window.\n";
+     if (AppConstants.platform == "win") {
+       info += "  --preferences      Open Options dialog.\n";
+     } else {

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 8acc1e5a97f769dc76d30ca0534f28b0a4511ab5..bd54169f976d3abe7d122b0efc0fa0d0626179eb 100644
+index 33a0f6b7e5cfe087388483fefa55b927e3e3f4a3..65135c6904b5e9523f77689dfc572aefe11b0961 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";
@@ -10,7 +10,7 @@ index 8acc1e5a97f769dc76d30ca0534f28b0a4511ab5..bd54169f976d3abe7d122b0efc0fa0d0
    AboutHomeStartupCache: "resource:///modules/AboutHomeStartupCache.sys.mjs",
    AWToolbarButton: "resource:///modules/aboutwelcome/AWToolbarUtils.sys.mjs",
    ASRouter: "resource:///modules/asrouter/ASRouter.sys.mjs",
-@@ -1452,7 +1453,7 @@ BrowserGlue.prototype = {
+@@ -1455,7 +1456,7 @@ BrowserGlue.prototype = {
        windowcount++;
        let tabbrowser = win.gBrowser;
        if (tabbrowser) {
@@ -19,7 +19,7 @@ index 8acc1e5a97f769dc76d30ca0534f28b0a4511ab5..bd54169f976d3abe7d122b0efc0fa0d0
        }
      }
  
-@@ -1617,6 +1618,8 @@ BrowserGlue.prototype = {
+@@ -1620,6 +1621,8 @@ BrowserGlue.prototype = {
      } else if (profileDataVersion < APP_DATA_VERSION) {
        lazy.ProfileDataUpgrader.upgrade(profileDataVersion, APP_DATA_VERSION);
      }

src/browser/components/controlcenter/content/identityPanel-inc-xhtml.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/components/controlcenter/content/identityPanel.inc.xhtml b/browser/components/controlcenter/content/identityPanel.inc.xhtml
-index 8e23aad8ca0bb686a669b11e1d78b7906f5f38d0..cf4873cc6165b5f77091c056d7e275e0f3d36769 100644
+index d7f214f471f70de3805e0f5b3b2d77f49a06c4f1..555b55089368e1782cf0266415fb3040b269d3a5 100644
 --- a/browser/components/controlcenter/content/identityPanel.inc.xhtml
 +++ b/browser/components/controlcenter/content/identityPanel.inc.xhtml
 @@ -28,7 +28,7 @@

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 9a98f56d83ee38e0f1aa41467b4ddf215c3d90f7..39e947ce083ce3b293337f5dbb40cd0b46db12e2 100644
+index 9a98f56d83ee38e0f1aa41467b4ddf215c3d90f7..c50781a1e8fd1a71baf497ba64d85292fa1347f4 100644
 --- a/browser/components/customizableui/CustomizableUI.sys.mjs
 +++ b/browser/components/customizableui/CustomizableUI.sys.mjs
 @@ -14,6 +14,7 @@ ChromeUtils.defineESModuleGetters(lazy, {
@@ -153,7 +153,17 @@ index 9a98f56d83ee38e0f1aa41467b4ddf215c3d90f7..39e947ce083ce3b293337f5dbb40cd0b
    /**
     * Add a widget to an area.
     * If the area to which you try to add is not known to CustomizableUI,
-@@ -7858,7 +7858,7 @@ class OverflowableToolbar {
+@@ -7798,7 +7798,9 @@ class OverflowableToolbar {
+         );
+ 
+         if (webExtList && CustomizableUI.isWebExtensionWidget(child.id)) {
++          if (webExtList.id !== "zen-overflow-extensions-list") {
+           child.setAttribute("cui-anchorid", webExtButtonID);
++          }
+           webExtList.insertBefore(child, webExtList.firstElementChild);
+         } else {
+           child.setAttribute("cui-anchorid", this.#defaultListButton.id);
+@@ -7858,7 +7860,7 @@ class OverflowableToolbar {
          ) {
            continue;
          }
@@ -162,7 +172,7 @@ index 9a98f56d83ee38e0f1aa41467b4ddf215c3d90f7..39e947ce083ce3b293337f5dbb40cd0b
          if (child != aExceptChild) {
            sum += getInlineSize(child);
          }
-@@ -7882,11 +7882,11 @@ class OverflowableToolbar {
+@@ -7882,11 +7884,11 @@ class OverflowableToolbar {
          parseFloat(style.paddingLeft) -
          parseFloat(style.paddingRight) -
          toolbarChildrenWidth;
@@ -176,7 +186,7 @@ index 9a98f56d83ee38e0f1aa41467b4ddf215c3d90f7..39e947ce083ce3b293337f5dbb40cd0b
      });
  
      lazy.log.debug(
-@@ -7901,7 +7901,14 @@ class OverflowableToolbar {
+@@ -7901,7 +7903,14 @@ class OverflowableToolbar {
        Math.max(targetWidth, targetChildrenWidth)
      );
      totalAvailWidth = Math.ceil(totalAvailWidth);
@@ -192,7 +202,7 @@ index 9a98f56d83ee38e0f1aa41467b4ddf215c3d90f7..39e947ce083ce3b293337f5dbb40cd0b
      return { isOverflowing, targetContentWidth, totalAvailWidth };
    }
  
-@@ -7962,7 +7969,11 @@ class OverflowableToolbar {
+@@ -7962,7 +7971,11 @@ class OverflowableToolbar {
              return;
            }
          }
@@ -205,7 +215,7 @@ index 9a98f56d83ee38e0f1aa41467b4ddf215c3d90f7..39e947ce083ce3b293337f5dbb40cd0b
            lazy.log.debug(
              `Need ${minSize} but width is ${totalAvailWidth} so bailing`
            );
-@@ -7995,7 +8006,7 @@ class OverflowableToolbar {
+@@ -7995,7 +8008,7 @@ class OverflowableToolbar {
          }
        }
        if (!inserted) {
@@ -214,7 +224,27 @@ index 9a98f56d83ee38e0f1aa41467b4ddf215c3d90f7..39e947ce083ce3b293337f5dbb40cd0b
        }
        child.removeAttribute("cui-anchorid");
        child.removeAttribute("overflowedItem");
-@@ -8340,7 +8351,7 @@ class OverflowableToolbar {
+@@ -8121,6 +8134,9 @@ class OverflowableToolbar {
+    *   if no such list exists.
+    */
+   get #webExtList() {
++    if (this.#toolbar.getAttribute("addon-webext-overflowtarget") !== this.#webExtListRef?.id) {
++      this.#webExtListRef = null;
++    }
+     if (!this.#webExtListRef) {
+       let targetID = this.#toolbar.getAttribute("addon-webext-overflowtarget");
+       if (!targetID) {
+@@ -8132,6 +8148,9 @@ class OverflowableToolbar {
+       let win = this.#toolbar.ownerGlobal;
+       let { panel } = win.gUnifiedExtensions;
+       this.#webExtListRef = panel.querySelector(`#${targetID}`);
++      if (!this.#webExtListRef) {
++        this.#webExtListRef = win.document.getElementById(targetID);
++      }
+     }
+     return this.#webExtListRef;
+   }
+@@ -8340,7 +8359,7 @@ class OverflowableToolbar {
          break;
        }
        case "mousedown": {

src/browser/components/customizableui/content/panelUI-js.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/components/customizableui/content/panelUI.js b/browser/components/customizableui/content/panelUI.js
-index d016811caa6c1ecc947fd705f6e1b27e3b5a12a5..89f2a9ec9ebd80e744ed0118e1b3c164151cf2b8 100644
+index 1c696a11d831ea25b4b01689e9b23bda8a754900..fed5576c05aeffd87022565580ce085cb81fe70c 100644
 --- a/browser/components/customizableui/content/panelUI.js
 +++ b/browser/components/customizableui/content/panelUI.js
-@@ -619,10 +619,12 @@ const PanelUI = {
+@@ -627,10 +627,12 @@ const PanelUI = {
      if (hasKids && !this.navbar.hasAttribute("nonemptyoverflow")) {
        this.navbar.setAttribute("nonemptyoverflow", "true");
        this.overflowPanel.setAttribute("hasfixeditems", "true");
@@ -15,7 +15,7 @@ index d016811caa6c1ecc947fd705f6e1b27e3b5a12a5..89f2a9ec9ebd80e744ed0118e1b3c164
      }
    },
  
-@@ -970,7 +972,7 @@ const PanelUI = {
+@@ -978,7 +980,7 @@ const PanelUI = {
          el.removeAttribute("data-lazy-l10n-id");
        });
  

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 bff93996b42aa1f88f1bfcbd813c3af4a5806f13..1252727b4811248e138cf7a38f8d1fd422576d28 100644
+index 7e32fc3f3c325b7317533acf5142bb912556fdbe..04bbe6bece881a05d2eadf81411bd4df2b745017 100644
 --- a/browser/components/extensions/parent/ext-tabs.js
 +++ b/browser/components/extensions/parent/ext-tabs.js
 @@ -501,6 +501,7 @@ this.tabs = class extends ExtensionAPIPersistent {

src/browser/components/preferences/jar-mn.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/components/preferences/jar.mn b/browser/components/preferences/jar.mn
-index 5e53352fdbd25d2aed40d0117c3ad7072b9acf8c..0f400864ba7cc850d212ddeeefb71a06376e845f 100644
+index f06aaedc681cac4dc26d8e168d47991098477424..db2e81338793f99d9f034555abb1f6ef28bb1ae9 100644
 --- a/browser/components/preferences/jar.mn
 +++ b/browser/components/preferences/jar.mn
-@@ -42,3 +42,5 @@ browser.jar:
+@@ -46,3 +46,5 @@ 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)
     content/browser/preferences/widgets/sync-engines-list.css          (widgets/sync-engine-list/sync-engines-list.css)

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 d218a04e0ab44e6a55e368566c97df95e939565b..59f038e59fe1a8554a8b112c5ac33e700b71c79c 100644
+index 171021979f4783251db7f74d52a922d4bd244f08..cdc91ac91905956a82dfa3ed229146622d1d3d80 100644
 --- a/browser/components/preferences/main.inc.xhtml
 +++ b/browser/components/preferences/main.inc.xhtml
-@@ -48,7 +48,8 @@
+@@ -49,7 +49,8 @@
  <!-- Browser layout -->
  <groupbox data-category="paneGeneral"
            data-subcategory="layout"
@@ -12,7 +12,7 @@ index d218a04e0ab44e6a55e368566c97df95e939565b..59f038e59fe1a8554a8b112c5ac33e70
    <label><html:h2 data-l10n-id="browser-layout-header"/></label>
    <radiogroup id="browserLayoutRadioGroup" preference="sidebar.verticalTabs">
      <radio id="browserLayoutHorizontalTabs" data-l10n-id="browser-layout-horizontal-tabs" value="false"/>
-@@ -253,6 +254,7 @@
+@@ -210,6 +211,7 @@
                languages-customize-add.label,
              " />
    </hbox>

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 6f99cbf973d414ffd4036d17740abe963629db37..520dcce0adb06c5ebfee8c76f72f7d7b40e106da 100644
+index 3720de145e6aa3fa2fb13f8480155d9472edaa8b..f04808d58b29611f4058d9fc52ab8bc20a34825a 100644
 --- a/browser/components/preferences/main.js
 +++ b/browser/components/preferences/main.js
-@@ -1729,6 +1729,11 @@ SettingGroupManager.registerGroups({
+@@ -2190,6 +2190,11 @@ SettingGroupManager.registerGroups({
          id: "browserRestoreSession",
          l10nId: "startup-restore-windows-and-tabs",
        },
@@ -14,7 +14,7 @@ index 6f99cbf973d414ffd4036d17740abe963629db37..520dcce0adb06c5ebfee8c76f72f7d7b
        {
          id: "windowsLaunchOnLogin",
          l10nId: "windows-launch-on-login",
-@@ -3133,7 +3138,7 @@ function getBundleForLocales(newLocales) {
+@@ -4606,7 +4611,7 @@ function getBundleForLocales(newLocales) {
      ])
    );
    return new Localization(

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 7d6835b8636f771943b8081b7d56f579812026c2..97227eec4baeffd39b23ed6194ce7fa108c3b862 100644
+index 7a279d4655523156ff259c9f6bcb2a0def9d1749..de71cec7693d1fe3bf34017ab76027b83631830a 100644
 --- a/browser/components/preferences/preferences.js
 +++ b/browser/components/preferences/preferences.js
-@@ -124,6 +124,7 @@ ChromeUtils.defineLazyGetter(this, "gSubDialog", function () {
+@@ -121,6 +121,7 @@ ChromeUtils.defineLazyGetter(this, "gSubDialog", function () {
        styleSheets: [
          "chrome://browser/skin/preferences/dialog.css",
          "chrome://browser/skin/preferences/preferences.css",
@@ -10,7 +10,7 @@ index 7d6835b8636f771943b8081b7d56f579812026c2..97227eec4baeffd39b23ed6194ce7fa1
        ],
        resizeCallback: async ({ title, frame }) => {
          // Search within main document and highlight matched keyword.
-@@ -344,6 +345,10 @@ function init_all() {
+@@ -350,6 +351,10 @@ function init_all() {
    register_module("paneSearch", gSearchPane);
    register_module("panePrivacy", gPrivacyPane);
    register_module("paneContainers", gContainersPane);

src/browser/components/preferences/preferences-xhtml.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/components/preferences/preferences.xhtml b/browser/components/preferences/preferences.xhtml
-index a1aec823d6266d69ff02aa8523d2da999a0871b9..559f2ea12e53dd19f24e7953db4388456b97f02c 100644
+index 0dd43c76f947e593a9be5edae936f1af17f9b627..df026b3e164da92536adef72ee0388386cb9708b 100644
 --- a/browser/components/preferences/preferences.xhtml
 +++ b/browser/components/preferences/preferences.xhtml
-@@ -46,6 +46,8 @@
+@@ -42,6 +42,8 @@
    <link rel="stylesheet" href="chrome://browser/content/preferences/widgets/setting-pane.css" />
    <link rel="stylesheet" href="chrome://browser/content/preferences/widgets/setting-control.css" />
  
@@ -11,7 +11,7 @@ index a1aec823d6266d69ff02aa8523d2da999a0871b9..559f2ea12e53dd19f24e7953db438845
    <link rel="localization" href="branding/brand.ftl"/>
    <link rel="localization" href="browser/browser.ftl"/>
      <!-- Used by fontbuilder.js -->
-@@ -115,6 +117,11 @@
+@@ -111,6 +113,11 @@
    <hbox flex="1">
  
      <vbox class="navigation">
@@ -23,7 +23,7 @@ index a1aec823d6266d69ff02aa8523d2da999a0871b9..559f2ea12e53dd19f24e7953db438845
        <!-- category list -->
        <richlistbox id="categories" data-l10n-id="category-list" data-l10n-attrs="aria-label">
          <richlistitem id="category-general"
-@@ -127,6 +134,50 @@
+@@ -123,6 +130,50 @@
            <label class="category-name" flex="1" data-l10n-id="pane-general-title"></label>
          </richlistitem>
  
@@ -74,7 +74,7 @@ index a1aec823d6266d69ff02aa8523d2da999a0871b9..559f2ea12e53dd19f24e7953db438845
          <richlistitem id="category-home"
                        class="category"
                        value="paneHome"
-@@ -242,11 +293,6 @@
+@@ -248,11 +299,6 @@
                  <html:a href="about:policies" target="_blank" data-l10n-id="managed-notice"/>
                </hbox>
              </hbox>
@@ -86,7 +86,7 @@ index a1aec823d6266d69ff02aa8523d2da999a0871b9..559f2ea12e53dd19f24e7953db438845
            </hbox>
          </hbox>
          <vbox id="mainPrefPane">
-@@ -260,6 +306,10 @@
+@@ -265,6 +311,10 @@
  #include sync.inc.xhtml
  #include experimental.inc.xhtml
  #include moreFromMozilla.inc.xhtml

src/browser/components/preferences/sync-inc-xhtml.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/components/preferences/sync.inc.xhtml b/browser/components/preferences/sync.inc.xhtml
-index 4ecdbdb129577165ed0df619577327f7610e138f..761a4d4f26a21ba555b7af180e8a6030615db500 100644
+index 86053cbf35ef1b004185ee54e9d7b9f2e2b8d550..a8fe2db034ffe99e01fd0f92d629151df7f708a8 100644
 --- a/browser/components/preferences/sync.inc.xhtml
 +++ b/browser/components/preferences/sync.inc.xhtml
 @@ -223,6 +223,10 @@

src/browser/components/preferences/zen-settings.js

@@ -818,6 +818,13 @@ const zenMissingKeyboardShortcutL10n = {
   key_accessibility: "zen-devtools-toggle-accessibility-shortcut",
 };
 
+var zenIgnoreKeyboardShortcutIDs = [
+  "key_enterFullScreen_old",
+  "key_enterFullScreen_compat",
+  "key_exitFullScreen_old",
+  "key_exitFullScreen_compat",
+];
+
 var zenIgnoreKeyboardShortcutL10n = [
   "zen-full-zoom-reduce-shortcut-alt-b",
   "zen-full-zoom-reduce-shortcut-alt-a",
@@ -888,7 +895,11 @@ var gZenCKSSettings = {
 
       const labelValue = zenMissingKeyboardShortcutL10n[keyID] ?? l10nID;
 
-      if (zenIgnoreKeyboardShortcutL10n.includes(labelValue) || shortcut.shouldBeEmpty) {
+      if (
+        zenIgnoreKeyboardShortcutIDs.includes(keyID) ||
+        zenIgnoreKeyboardShortcutL10n.includes(labelValue) ||
+        shortcut.shouldBeEmpty
+      ) {
         continue;
       }
 

src/browser/components/screenshots/overlay/overlay-css.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/components/screenshots/overlay/overlay.css b/browser/components/screenshots/overlay/overlay.css
-index 43a5d2109ad107ce1c79eef7cb8635bc1fa813f7..c1e5648d0e71826119bda1bc18c5d16886bab8fd 100644
+index 94d87522bfaaf59b9138ec5ca960be0a0ea31339..ab3fa41cefdfc1d93edeb8a2d626bd9b1e07344b 100644
 --- a/browser/components/screenshots/overlay/overlay.css
 +++ b/browser/components/screenshots/overlay/overlay.css
-@@ -196,6 +196,9 @@
+@@ -200,6 +200,9 @@
    pointer-events: none;
    position: absolute;
    z-index: var(--screenshots-high-layer);
@@ -12,11 +12,11 @@ index 43a5d2109ad107ce1c79eef7cb8635bc1fa813f7..c1e5648d0e71826119bda1bc18c5d168
  }
  
  #top-background {
-@@ -214,7 +217,7 @@
+@@ -218,7 +221,7 @@
  }
  
  .bghighlight {
--  background-color: rgba(0, 0, 0, 0.7);
+-  background-color: var(--background-color-overlay);
 +  background-color: rgba(0, 0, 0, 0.5);
    position: absolute;
    overflow: clip;

src/browser/components/search/SearchUIUtils-sys-mjs.patch

@@ -1,13 +1,12 @@
 diff --git a/browser/components/search/SearchUIUtils.sys.mjs b/browser/components/search/SearchUIUtils.sys.mjs
-index 65daa1402a52e252360386e60471f726c1387bb3..be8f588316a8a4d7f33a324bf11f9e1f19def32d 100644
+index 22680c91da251adc21bb46debc73b3dbf6cdf08c..80d465e698c9900a6495d3f17ca2e66a25ff4021 100644
 --- a/browser/components/search/SearchUIUtils.sys.mjs
 +++ b/browser/components/search/SearchUIUtils.sys.mjs
-@@ -444,7 +444,7 @@ export var SearchUIUtils = {
+@@ -445,6 +445,7 @@ export var SearchUIUtils = {
-         triggeringSearchEngine: engine.name,
        },
      });
--
-+    window.gZenGlanceManager?.onSearchSelectCommand(where);
-     return { engine, url: submission.uri };
-   },
  
++    window.gZenGlanceManager?.onSearchSelectCommand(where);
+     lazy.BrowserSearchTelemetry.recordSearch(
+       window.gBrowser.selectedBrowser,
+       engine,

src/browser/components/sessionstore/SessionStartup-sys-mjs.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/components/sessionstore/SessionStartup.sys.mjs b/browser/components/sessionstore/SessionStartup.sys.mjs
-index 86600ffb5178599ab23270a964064ca657a3283f..e7014e5bce547d37ec92377a95bad5be4d52152e 100644
+index 86600ffb5178599ab23270a964064ca657a3283f..70d7b5c7d69d3700475d663b595052264c67d351 100644
 --- a/browser/components/sessionstore/SessionStartup.sys.mjs
 +++ b/browser/components/sessionstore/SessionStartup.sys.mjs
 @@ -40,6 +40,7 @@ ChromeUtils.defineESModuleGetters(lazy, {
@@ -28,7 +28,16 @@ index 86600ffb5178599ab23270a964064ca657a3283f..e7014e5bce547d37ec92377a95bad5be
      if (this._initialState == null) {
        // No valid session found.
        this._sessionType = this.NO_SESSION;
-@@ -336,12 +339,7 @@ export var SessionStartup = {
+@@ -276,6 +279,8 @@ export var SessionStartup = {
+         `Previous shutdown ok? ${this._previousSessionCrashed}, reason: ${previousSessionCrashedReason}`
+       );
+ 
++      lazy.ZenSessionStore.onCrashCheckpoints(this._initialState);
++
+       Services.obs.addObserver(this, "sessionstore-windows-restored", true);
+ 
+       if (this.sessionType == this.NO_SESSION) {
+@@ -336,12 +341,7 @@ export var SessionStartup = {
    isAutomaticRestoreEnabled() {
      if (this._resumeSessionEnabled === null) {
        this._resumeSessionEnabled =
@@ -42,3 +51,13 @@ index 86600ffb5178599ab23270a964064ca657a3283f..e7014e5bce547d37ec92377a95bad5be
      }
  
      return this._resumeSessionEnabled;
+@@ -354,8 +354,7 @@ export var SessionStartup = {
+    */
+   willRestore() {
+     return (
+-      this.sessionType == this.RECOVER_SESSION ||
+-      this.sessionType == this.RESUME_SESSION
++      true
+     );
+   },
+ 

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 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96faedf6f0b 100644
+index f066bc7a9cca1788080d088141030c225a733931..accb078ebbc23f9a823ae6c277f1e1bf06644d92 100644
 --- a/browser/components/sessionstore/SessionStore.sys.mjs
 +++ b/browser/components/sessionstore/SessionStore.sys.mjs
 @@ -127,6 +127,9 @@ const TAB_EVENTS = [
@@ -12,7 +12,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  ];
  
  const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
-@@ -196,6 +199,8 @@ ChromeUtils.defineESModuleGetters(lazy, {
+@@ -198,6 +201,8 @@ ChromeUtils.defineESModuleGetters(lazy, {
    TabStateCache: "resource:///modules/sessionstore/TabStateCache.sys.mjs",
    TabStateFlusher: "resource:///modules/sessionstore/TabStateFlusher.sys.mjs",
    setTimeout: "resource://gre/modules/Timer.sys.mjs",
@@ -21,7 +21,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  });
  
  ChromeUtils.defineLazyGetter(lazy, "blankURI", () => {
-@@ -1261,10 +1266,7 @@ var SessionStoreInternal = {
+@@ -1263,10 +1268,7 @@ var SessionStoreInternal = {
     */
    get willAutoRestore() {
      return (
@@ -33,7 +33,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
      );
    },
  
-@@ -1934,6 +1936,9 @@ var SessionStoreInternal = {
+@@ -1940,6 +1942,9 @@ var SessionStoreInternal = {
        case "TabPinned":
        case "TabUnpinned":
        case "SwapDocShells":
@@ -43,7 +43,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
          this.saveStateDelayed(win);
          break;
        case "TabGroupCreate":
-@@ -2044,6 +2049,10 @@ var SessionStoreInternal = {
+@@ -2050,6 +2055,10 @@ var SessionStoreInternal = {
        this._windows[aWindow.__SSi].isTaskbarTab = true;
      }
  
@@ -51,10 +51,10 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
 +      this._windows[aWindow.__SSi].isZenUnsynced = true;
 +    }
 +
-     let tabbrowser = aWindow.gBrowser;
+     if (lazy.AIWindow.isAIWindowActiveAndEnabled(aWindow)) {
- 
+       this._windows[aWindow.__SSi].isAIWindow = true;
-     // add tab change listeners to all already existing tabs
+     }
-@@ -2076,7 +2085,7 @@ var SessionStoreInternal = {
+@@ -2086,7 +2095,7 @@ 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 +63,16 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  
      // perform additional initialization when the first window is loading
      if (lazy.RunState.isStopped) {
-@@ -2131,6 +2140,7 @@ var SessionStoreInternal = {
+@@ -2098,7 +2107,7 @@ var SessionStoreInternal = {
+         // to disk to NOW() to enforce a full interval before the next write.
+         lazy.SessionSaver.updateLastSaveTime();
+ 
+-        if (isPrivateWindow || isTaskbarTab) {
++        if (isPrivateWindow || isTaskbarTab || aWindow.document.documentElement.hasAttribute("zen-unsynced-window")) {
+           this._log.debug(
+             "initializeWindow, the window is private or a web app. Saving SessionStartup.state for possibly restoring later"
+           );
+@@ -2141,6 +2150,7 @@ var SessionStoreInternal = {
            null,
            "sessionstore-one-or-no-tab-restored"
          );
@@ -71,7 +80,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
          this._deferredAllWindowsRestored.resolve();
        }
        // this window was opened by _openWindowWithState
-@@ -2175,7 +2185,6 @@ var SessionStoreInternal = {
+@@ -2190,7 +2200,6 @@ var SessionStoreInternal = {
        if (closedWindowState) {
          let newWindowState;
          if (
@@ -79,7 +88,15 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
            !lazy.SessionStartup.willRestore()
          ) {
            // We want to split the window up into pinned tabs and unpinned tabs.
-@@ -2239,6 +2248,15 @@ var SessionStoreInternal = {
+@@ -2226,6 +2235,7 @@ var SessionStoreInternal = {
+         }
+ 
+         if (newWindowState) {
++          lazy.ZenSessionStore.onRestoringClosedWindow(newWindowState);
+           // Ensure that the window state isn't hidden
+           this._restoreCount = 1;
+           let state = { windows: [newWindowState] };
+@@ -2254,6 +2264,15 @@ var SessionStoreInternal = {
        });
        this._shouldRestoreLastSession = false;
      }
@@ -95,7 +112,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  
      if (this._restoreLastWindow && aWindow.toolbar.visible) {
        // always reset (if not a popup window)
-@@ -2383,7 +2401,7 @@ var SessionStoreInternal = {
+@@ -2404,7 +2423,7 @@ var SessionStoreInternal = {
  
      var tabbrowser = aWindow.gBrowser;
  
@@ -104,7 +121,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  
      TAB_EVENTS.forEach(function (aEvent) {
        tabbrowser.tabContainer.removeEventListener(aEvent, this, true);
-@@ -2434,7 +2452,7 @@ var SessionStoreInternal = {
+@@ -2455,7 +2474,7 @@ var SessionStoreInternal = {
  
        let isLastRegularWindow =
          Object.values(this._windows).filter(
@@ -113,7 +130,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
          ).length == 1;
        this._log.debug(
          `onClose, closing window isLastRegularWindow? ${isLastRegularWindow}`
-@@ -2491,8 +2509,8 @@ var SessionStoreInternal = {
+@@ -2512,8 +2531,8 @@ 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.
@@ -124,7 +141,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
        }
  
        completionPromise = lazy.TabStateFlusher.flushWindow(aWindow).then(() => {
-@@ -2512,8 +2530,9 @@ var SessionStoreInternal = {
+@@ -2533,8 +2552,9 @@ var SessionStoreInternal = {
  
          // Save non-private windows if they have at
          // least one saveable tab or are the last window.
@@ -136,7 +153,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  
            if (!isLastWindow && winData.closedId > -1) {
              this._addClosedAction(
-@@ -2589,7 +2608,7 @@ var SessionStoreInternal = {
+@@ -2610,7 +2630,7 @@ var SessionStoreInternal = {
     *        to call this method again asynchronously (for example, after
     *        a window flush).
     */
@@ -145,7 +162,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
      // Make sure SessionStore is still running, and make sure that we
      // haven't chosen to forget this window.
      if (
-@@ -2606,6 +2625,7 @@ var SessionStoreInternal = {
+@@ -2627,6 +2647,7 @@ var SessionStoreInternal = {
        // _closedWindows from a previous call to this function.
        let winIndex = this._closedWindows.indexOf(winData);
        let alreadyStored = winIndex != -1;
@@ -153,7 +170,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
        // If sidebar command is truthy, i.e. sidebar is open, store sidebar settings
        let shouldStore = hasSaveableTabs || isLastWindow;
  
-@@ -3408,7 +3428,7 @@ var SessionStoreInternal = {
+@@ -3429,7 +3450,7 @@ var SessionStoreInternal = {
      if (!isPrivateWindow && tabState.isPrivate) {
        return;
      }
@@ -162,7 +179,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
        return;
      }
  
-@@ -4129,6 +4149,12 @@ var SessionStoreInternal = {
+@@ -4150,6 +4171,12 @@ var SessionStoreInternal = {
          Math.min(tabState.index, tabState.entries.length)
        );
        tabState.pinned = false;
@@ -175,7 +192,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  
        if (inBackground === false) {
          aWindow.gBrowser.selectedTab = newTab;
-@@ -4565,6 +4591,8 @@ var SessionStoreInternal = {
+@@ -4586,6 +4613,8 @@ var SessionStoreInternal = {
        // Append the tab if we're opening into a different window,
        tabIndex: aSource == aTargetWindow ? pos : Infinity,
        pinned: state.pinned,
@@ -184,7 +201,19 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
        userContextId: state.userContextId,
        skipLoad: true,
        preferredRemoteType,
-@@ -5414,7 +5442,7 @@ var SessionStoreInternal = {
+@@ -5087,9 +5116,10 @@ var SessionStoreInternal = {
+       if (activePageData.title && activePageData.title != activePageData.url) {
+         win.gBrowser.setInitialTabTitle(tab, activePageData.title, {
+           isContentTitle: true,
++          _zenChangeLabelFlag: true,
+         });
+       } else {
+-        win.gBrowser.setInitialTabTitle(tab, activePageData.url);
++        win.gBrowser.setInitialTabTitle(tab, activePageData.url, { _zenChangeLabelFlag: true });
+       }
+     }
+ 
+@@ -5446,7 +5476,7 @@ var SessionStoreInternal = {
  
      for (let i = tabbrowser.pinnedTabCount; i < tabbrowser.tabs.length; i++) {
        let tab = tabbrowser.tabs[i];
@@ -193,7 +222,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
          removableTabs.push(tab);
        }
      }
-@@ -5525,7 +5553,7 @@ var SessionStoreInternal = {
+@@ -5559,7 +5589,7 @@ var SessionStoreInternal = {
  
      // collect the data for all windows
      for (ix in this._windows) {
@@ -202,7 +231,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
          // window data is still in _statesToRestore
          continue;
        }
-@@ -5668,11 +5696,12 @@ var SessionStoreInternal = {
+@@ -5702,11 +5732,12 @@ var SessionStoreInternal = {
      }
  
      let tabbrowser = aWindow.gBrowser;
@@ -216,7 +245,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
      // update the internal state data for this window
      for (let tab of tabs) {
        if (tab == aWindow.FirefoxViewHandler.tab) {
-@@ -5683,6 +5712,9 @@ var SessionStoreInternal = {
+@@ -5717,6 +5748,9 @@ var SessionStoreInternal = {
        tabsData.push(tabData);
      }
  
@@ -226,7 +255,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
      // update tab group state for this window
      winData.groups = [];
      for (let tabGroup of aWindow.gBrowser.tabGroups) {
-@@ -5695,7 +5727,7 @@ var SessionStoreInternal = {
+@@ -5729,7 +5763,7 @@ 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) {
@@ -235,7 +264,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
        winData.title = tabbrowser.tabs[0].label;
      }
      winData.selected = selectedIndex;
-@@ -5810,8 +5842,8 @@ var SessionStoreInternal = {
+@@ -5844,8 +5878,8 @@ var SessionStoreInternal = {
      // selectTab represents.
      let selectTab = 0;
      if (overwriteTabs) {
@@ -246,7 +275,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
        selectTab = Math.min(selectTab, winData.tabs.length);
      }
  
-@@ -5833,6 +5865,7 @@ var SessionStoreInternal = {
+@@ -5867,6 +5901,7 @@ var SessionStoreInternal = {
      if (overwriteTabs) {
        for (let i = tabbrowser.browsers.length - 1; i >= 0; i--) {
          if (!tabbrowser.tabs[i].selected) {
@@ -254,7 +283,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
            tabbrowser.removeTab(tabbrowser.tabs[i]);
          }
        }
-@@ -5866,6 +5899,12 @@ var SessionStoreInternal = {
+@@ -5900,6 +5935,12 @@ var SessionStoreInternal = {
          savedTabGroup => !openTabGroupIdsInWindow.has(savedTabGroup.id)
        );
      }
@@ -267,7 +296,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  
      // Move the originally open tabs to the end.
      if (initialTabs) {
-@@ -6419,6 +6458,25 @@ var SessionStoreInternal = {
+@@ -6453,6 +6494,25 @@ var SessionStoreInternal = {
  
      // Most of tabData has been restored, now continue with restoring
      // attributes that may trigger external events.
@@ -293,7 +322,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  
      if (tabData.pinned) {
        tabbrowser.pinTab(tab);
-@@ -6567,6 +6625,9 @@ var SessionStoreInternal = {
+@@ -6601,6 +6661,9 @@ var SessionStoreInternal = {
          aWindow.gURLBar.readOnly = false;
        }
      }
@@ -303,7 +332,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
  
      let promiseParts = Promise.withResolvers();
      aWindow.setTimeout(() => {
-@@ -7343,7 +7404,7 @@ var SessionStoreInternal = {
+@@ -7389,7 +7452,7 @@ var SessionStoreInternal = {
  
        let groupsToSave = new Map();
        for (let tIndex = 0; tIndex < window.tabs.length; ) {
@@ -312,7 +341,7 @@ index 2a055f0c5f34f0a2667f659185120c07d38f4e41..2f63071f78782dbc30bde25b3bcaa96f
            // Adjust window.selected
            if (tIndex + 1 < window.selected) {
              window.selected -= 1;
-@@ -7358,7 +7419,7 @@ var SessionStoreInternal = {
+@@ -7404,7 +7467,7 @@ var SessionStoreInternal = {
            );
            // We don't want to increment tIndex here.
            continue;

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 82721356d191055bec0d4b0ca49e481221988801..68437e6f9fa54fc75ca9e24d738e8afcd0ea22f8 100644
+index 82721356d191055bec0d4b0ca49e481221988801..e01904a6ea73e068c236adecbac6a97adedb2bd3 100644
 --- a/browser/components/sessionstore/TabState.sys.mjs
 +++ b/browser/components/sessionstore/TabState.sys.mjs
-@@ -85,7 +85,24 @@ class _TabState {
+@@ -85,7 +85,25 @@ class _TabState {
        tabData.groupId = tab.group.id;
      }
  
@@ -19,6 +19,7 @@ index 82721356d191055bec0d4b0ca49e481221988801..68437e6f9fa54fc75ca9e24d738e8afc
 +    tabData.zenIsGlance = tab.hasAttribute("zen-glance-tab");
 +    tabData._zenPinnedInitialState = tab._zenPinnedInitialState;
 +    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) {

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 bd6db85732e6e99ca51ce9c4c1a7d469199cf8cb..6c7859c1014baf4e343714ef797cf558d065e189 100644
+index 86a74b2abfe9b49d71ce61fefc636b865bef83a9..7c18fcf15d127d79febb03ca15f0193dd6263604 100644
 --- a/browser/components/sidebar/browser-sidebar.js
 +++ b/browser/components/sidebar/browser-sidebar.js
-@@ -793,7 +793,7 @@ var SidebarController = {
+@@ -799,7 +799,7 @@ var SidebarController = {
    setPosition() {
      // First reset all ordinals to match DOM ordering.
      let contentArea = document.getElementById("tabbrowser-tabbox");

src/browser/components/tabbrowser/TabUnloader-sys-mjs.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/components/tabbrowser/TabUnloader.sys.mjs b/browser/components/tabbrowser/TabUnloader.sys.mjs
-index aefccef39f0b81176a5710a794e8a5e2650d6507..e073c65790df6d55e827a4f4596199f4f1a99a57 100644
+index aefccef39f0b81176a5710a794e8a5e2650d6507..53c838b3bc322cadee4ef9b411d02fc0af8c35e5 100644
 --- a/browser/components/tabbrowser/TabUnloader.sys.mjs
 +++ b/browser/components/tabbrowser/TabUnloader.sys.mjs
 @@ -52,7 +52,7 @@ let CRITERIA_WEIGHT = 1;
@@ -11,3 +11,12 @@ index aefccef39f0b81176a5710a794e8a5e2650d6507..e073c65790df6d55e827a4f4596199f4
        return weight;
      }
  
+@@ -106,7 +106,7 @@ let DefaultTabUnloaderMethods = {
+ 
+   *iterateTabs() {
+     for (let win of Services.wm.getEnumerator("navigator:browser")) {
+-      for (let tab of win.gBrowser.tabs) {
++      for (let tab of win.gZenWorkspaces.allStoredTabs) {
+         yield { tab, gBrowser: win.gBrowser };
+       }
+     }

src/browser/components/tabbrowser/content/browser-ctrlTab-js.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/components/tabbrowser/content/browser-ctrlTab.js b/browser/components/tabbrowser/content/browser-ctrlTab.js
-index 3330dc133c120e7fbeecd2a36c71f9dfba60b3fb..0243cdfe67e5eb3f68fc7cde66bb3809e79bd6c3 100644
+index b435917892ac77fb433ea709f2524db2f2347a1d..fcbfeb92f3ae4effbfd3333514ed4d412e3063c6 100644
 --- a/browser/components/tabbrowser/content/browser-ctrlTab.js
 +++ b/browser/components/tabbrowser/content/browser-ctrlTab.js
 @@ -252,7 +252,8 @@ var ctrlTab = {

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 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a1ef240b5 100644
+index 730190d845f5312736f437cdc654c1693241ce56..d0404c46955fa16103a6f83e410f4f8ad7e78655 100644
 --- a/browser/components/tabbrowser/content/drag-and-drop.js
 +++ b/browser/components/tabbrowser/content/drag-and-drop.js
 @@ -35,6 +35,9 @@
@@ -12,7 +12,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
      if (isTab(element) || isSplitViewWrapper(element)) {
        return element;
      }
-@@ -115,6 +118,9 @@
+@@ -118,6 +121,9 @@
        }
  
        let draggedTab = event.dataTransfer.mozGetDataAt(TAB_DROP_TYPE, 0);
@@ -22,18 +22,18 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
        if (
          (dropEffect == "move" || dropEffect == "copy") &&
          document == draggedTab.ownerDocument &&
-@@ -133,10 +139,6 @@
+@@ -136,10 +142,6 @@
  
            // Pinned tabs in expanded vertical mode are on a grid format and require
            // different logic to drag and drop.
--          if (this._isContainerVerticalPinnedGrid(draggedTab)) {
+-          if (this._tabbrowserTabs.isContainerVerticalPinnedGrid(draggedTab)) {
 -            this._animateExpandedPinnedTabMove(event);
 -            return;
 -          }
            this._animateTabMove(event);
            return;
          }
-@@ -269,6 +271,10 @@
+@@ -272,6 +274,10 @@
  
        this._tabDropIndicator.hidden = true;
        event.stopPropagation();
@@ -44,7 +44,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
        if (draggedTab && dropEffect == "copy") {
          let duplicatedDraggedTab;
          let duplicatedTabs = [];
-@@ -294,8 +300,9 @@
+@@ -297,8 +303,9 @@
          let translateOffsetY = oldTranslateY % tabHeight;
          let newTranslateX = oldTranslateX - translateOffsetX;
          let newTranslateY = oldTranslateY - translateOffsetY;
@@ -54,9 +54,9 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
 +        let numPinned = gBrowser._numVisiblePinTabsWithoutCollapsed;
 +        let essential = draggedTab.hasAttribute("zen-essential");
  
-         if (this._isContainerVerticalPinnedGrid(draggedTab)) {
+         if (this._tabbrowserTabs.isContainerVerticalPinnedGrid(draggedTab)) {
            // Update both translate axis for pinned vertical expanded tabs
-@@ -311,9 +318,12 @@
+@@ -314,9 +321,12 @@
            }
          } else {
            let tabs = this._tabbrowserTabs.dragAndDropElements.slice(
@@ -71,7 +71,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
            let size = this._tabbrowserTabs.verticalMode ? "height" : "width";
            let screenAxis = this._tabbrowserTabs.verticalMode
              ? "screenY"
-@@ -365,11 +375,13 @@
+@@ -368,11 +378,13 @@
            this._dragToPinPromoCard,
          ];
          let shouldPin =
@@ -85,7 +85,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
            isTab(draggedTab) &&
            draggedTab.pinned &&
            this._tabbrowserTabs.arrowScrollbox.contains(event.target);
-@@ -432,6 +444,7 @@
+@@ -436,6 +448,7 @@
            }
          }
  
@@ -93,7 +93,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
          if (shouldTranslate) {
            let translationPromises = [];
            for (let item of movingTabs) {
-@@ -443,7 +456,7 @@
+@@ -447,7 +460,7 @@
                  item.removeAttribute("tabdrop-samewindow");
                  resolve();
                };
@@ -102,7 +102,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
                  postTransitionCleanup();
                } else {
                  let onTransitionEnd = transitionendEvent => {
-@@ -513,7 +526,7 @@
+@@ -521,7 +534,7 @@
            if (tab.selected) {
              selectedTab = tab;
              indexForSelectedTab = newIndex;
@@ -111,7 +111,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
              const newTab = gBrowser.adoptTab(tab, {
                elementIndex: newIndex,
                selectTab: tab == draggedTab,
-@@ -523,7 +536,7 @@
+@@ -531,7 +544,7 @@
              }
            }
          }
@@ -120,7 +120,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
            const newTab = gBrowser.adoptTab(selectedTab, {
              elementIndex: indexForSelectedTab,
              selectTab: selectedTab == draggedTab,
-@@ -534,10 +547,6 @@
+@@ -542,10 +555,6 @@
          }
  
          // Restore tab selection
@@ -131,7 +131,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
        } else {
          // Pass true to disallow dropping javascript: or data: urls
          let links;
-@@ -584,6 +593,7 @@
+@@ -592,6 +601,7 @@
  
            let nextItem = this._tabbrowserTabs.dragAndDropElements[newIndex];
            let tabGroup = isTab(nextItem) && nextItem.group;
@@ -139,7 +139,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
            gBrowser.loadTabs(urls, {
              inBackground,
              replace,
-@@ -621,7 +631,16 @@
+@@ -629,7 +639,16 @@
          this._expandGroupOnDrop(draggedTab);
        }
        this._resetTabsAfterDrop(draggedTab.ownerDocument);
@@ -157,11 +157,15 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
        if (
          dt.mozUserCancelled ||
          dt.dropEffect != "none" ||
-@@ -825,7 +844,10 @@
+@@ -833,11 +852,10 @@
      _getDragTarget(event, { ignoreSides = false } = {}) {
        let { target } = event;
        while (target) {
--        if (isTab(target) || isTabGroupLabel(target)) {
+-        if (
+-          isTab(target) ||
+-          isTabGroupLabel(target) ||
+-          isSplitViewWrapper(target)
+-        ) {
 +        if (isTab(target) || isTabGroupLabel(target) || target?.classList?.contains("tab-group-label-container")) {
 +          if (target.classList?.contains("tab-group-label-container")) {
 +            target = target.querySelector(".tab-group-label");
@@ -169,7 +173,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
            break;
          }
          target = target.parentNode;
-@@ -842,14 +864,17 @@
+@@ -854,6 +872,9 @@
            return null;
          }
        }
@@ -179,17 +183,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
        return target;
      }
  
-     _isContainerVerticalPinnedGrid(tab) {
+@@ -883,7 +904,8 @@
-       return (
-         this._tabbrowserTabs.verticalMode &&
--        tab.pinned &&
--        this._tabbrowserTabs.hasAttribute("expanded") &&
-+        tab.hasAttribute("zen-essential") &&
-+        (this._tabbrowserTabs.hasAttribute("expanded") || document.documentElement.hasAttribute("zen-sidebar-expanded")) &&
-         !this._tabbrowserTabs.expandOnHover
-       );
-     }
-@@ -880,7 +905,8 @@
          isTabGroupLabel(draggedTab) &&
          draggedTab._dragData?.expandGroupOnDrop
        ) {
@@ -199,7 +193,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
        }
      }
  
-@@ -1058,7 +1084,6 @@
+@@ -1061,7 +1083,6 @@
          // using updateDragImage. On Linux, we can use a panel.
          if (platform == "win" || platform == "macosx") {
            captureListener = function () {
@@ -207,7 +201,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
            };
          } else {
            // Create a panel to use it in setDragImage
-@@ -1096,7 +1121,6 @@
+@@ -1099,7 +1120,6 @@
          );
          dragImageOffset = dragImageOffset * scale;
        }
@@ -215,7 +209,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
  
        // _dragData.offsetX/Y give the coordinates that the mouse should be
        // positioned relative to the corner of the new window created upon
-@@ -1115,7 +1139,7 @@
+@@ -1118,7 +1138,7 @@
        let dropEffect = this.getDropEffectForTabDrag(event);
        let isMovingInTabStrip = !fromTabList && dropEffect == "move";
        let collapseTabGroupDuringDrag =
@@ -224,7 +218,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
  
        tab._dragData = {
          offsetX: this._tabbrowserTabs.verticalMode
-@@ -1125,7 +1149,7 @@
+@@ -1128,7 +1148,7 @@
            ? event.screenY - window.screenY - tabOffset
            : event.screenY - window.screenY,
          scrollPos:
@@ -233,7 +227,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
              ? this._tabbrowserTabs.pinnedTabsContainer.scrollPosition
              : this._tabbrowserTabs.arrowScrollbox.scrollPosition,
          screenX: event.screenX,
-@@ -1152,6 +1176,7 @@
+@@ -1155,6 +1175,7 @@
  
            if (collapseTabGroupDuringDrag) {
              tab.group.collapsed = true;
@@ -241,7 +235,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
            }
          }
        }
-@@ -1176,6 +1201,7 @@
+@@ -1179,6 +1200,7 @@
        if (tabStripItemElement.hasAttribute("dragtarget")) {
          return;
        }
@@ -249,7 +243,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
        let isPinned = tab.pinned;
        let numPinned = gBrowser.pinnedTabCount;
        let dragAndDropElements = this._tabbrowserTabs.dragAndDropElements;
-@@ -1601,7 +1627,6 @@
+@@ -1604,7 +1626,6 @@
  
        for (let item of this._tabbrowserTabs.dragAndDropElements) {
          item = elementToMove(item);
@@ -257,7 +251,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
          item.removeAttribute("multiselected-move-together");
          delete item._moveTogetherSelectedTabsData;
        }
-@@ -2429,7 +2454,6 @@
+@@ -2432,7 +2453,6 @@
        for (let item of this._tabbrowserTabs.dragAndDropElements) {
          this._resetGroupTarget(item);
          item = elementToMove(item);
@@ -265,7 +259,7 @@ index 57800333445ec7850742145527e04ae8d504b0bb..a13875436a72f89178455a09c8665b9a
        }
        this._tabbrowserTabs.removeAttribute("movingtab-group");
        this._tabbrowserTabs.removeAttribute("movingtab-ungroup");
-@@ -2460,17 +2484,14 @@
+@@ -2463,17 +2483,14 @@
          tab.style.left = "";
          tab.style.top = "";
          tab.style.maxWidth = "";

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 6528da245d922e2ccdb59cbf8106055bc34d1e74..b5d5ac633c06d7d9c909ec9456a5f3c165a6b925 100644
+index 836bee14d2b63604688ebe477a5d915a5e99b305..a675aed711560b4a44604fc17478cffa7fb68439 100644
 --- a/browser/components/tabbrowser/content/tab.js
 +++ b/browser/components/tabbrowser/content/tab.js
 @@ -21,6 +21,7 @@
@@ -14,7 +14,7 @@ index 6528da245d922e2ccdb59cbf8106055bc34d1e74..b5d5ac633c06d7d9c909ec9456a5f3c1
              <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>
-+            <label class="tab-reset-pin-label" data-l10n-id="tab-reset-pin-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"/>
            <image class="tab-close-button close-icon" role="button" data-l10n-id="tabbrowser-close-tabs-button" data-l10n-args='{"tabCount": 1}' keyNav="false"/>

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 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256ca3c9175 100644
+index d7765e0adb37216d35f2125abf96025cbb150bab..27202066cef98d9826884806f71e70812457bd78 100644
 --- a/browser/components/tabbrowser/content/tabbrowser.js
 +++ b/browser/components/tabbrowser/content/tabbrowser.js
-@@ -398,6 +398,7 @@
+@@ -405,6 +405,7 @@
       * @type {MozBrowser[]}
       */
      get splitViewBrowsers() {
@@ -10,7 +10,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        const browsers = [];
        if (this.#activeSplitView) {
          for (const tab of this.#activeSplitView.tabs) {
-@@ -462,15 +463,66 @@
+@@ -469,15 +470,66 @@
        return this.tabContainer.visibleTabs;
      }
  
@@ -79,7 +79,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
      set selectedTab(val) {
        if (
          gSharedTabWarning.willShowSharedTabWarning(val) ||
-@@ -546,6 +598,10 @@
+@@ -553,6 +605,10 @@
          userContextId = parseInt(tabArgument.getAttribute("usercontextid"), 10);
        }
  
@@ -90,7 +90,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        if (tabArgument && tabArgument.linkedBrowser) {
          remoteType = tabArgument.linkedBrowser.remoteType;
          initialBrowsingContextGroupId =
-@@ -625,6 +681,8 @@
+@@ -645,6 +701,8 @@
        this.tabpanels.appendChild(panel);
  
        let tab = this.tabs[0];
@@ -99,7 +99,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        tab.linkedPanel = uniqueId;
        this._selectedTab = tab;
        this._selectedBrowser = browser;
-@@ -912,13 +970,18 @@
+@@ -932,13 +990,18 @@
        }
  
        this.showTab(aTab);
@@ -119,7 +119,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
        aTab.setAttribute("pinned", "true");
        this._updateTabBarForPinnedTabs();
-@@ -931,11 +994,19 @@
+@@ -951,11 +1014,19 @@
        }
  
        this.#handleTabMove(aTab, () => {
@@ -140,7 +140,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        });
  
        aTab.style.marginInlineStart = "";
-@@ -1112,6 +1183,9 @@
+@@ -1132,6 +1203,9 @@
  
        let LOCAL_PROTOCOLS = ["chrome:", "about:", "resource:", "data:"];
  
@@ -150,7 +150,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        if (
          aIconURL &&
          !LOCAL_PROTOCOLS.some(protocol => aIconURL.startsWith(protocol))
-@@ -1121,6 +1195,9 @@
+@@ -1141,6 +1215,9 @@
          );
          return;
        }
@@ -160,7 +160,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
        let browser = this.getBrowserForTab(aTab);
        browser.mIconURL = aIconURL;
-@@ -1393,7 +1470,6 @@
+@@ -1422,7 +1499,6 @@
  
        // Preview mode should not reset the owner
        if (!this._previewMode && !oldTab.selected) {
@@ -168,7 +168,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        }
  
        let lastRelatedTab = this._lastRelatedTabMap.get(oldTab);
-@@ -1484,6 +1560,7 @@
+@@ -1513,6 +1589,7 @@
        if (!this._previewMode) {
          newTab.recordTimeFromUnloadToReload();
          newTab.updateLastAccessed();
@@ -176,7 +176,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          oldTab.updateLastAccessed();
          // if this is the foreground window, update the last-seen timestamps.
          if (this.ownerGlobal == BrowserWindowTracker.getTopWindow()) {
-@@ -1636,6 +1713,9 @@
+@@ -1665,6 +1742,9 @@
        }
  
        let activeEl = document.activeElement;
@@ -186,11 +186,13 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        // If focus is on the old tab, move it to the new tab.
        if (activeEl == oldTab) {
          newTab.focus();
-@@ -1959,6 +2039,11 @@
+@@ -1987,7 +2067,12 @@
+       return this._setTabLabel(aTab, aLabel);
      }
  
-     _setTabLabel(aTab, aLabel, { beforeTabOpen, isContentTitle, isURL } = {}) {
+-    _setTabLabel(aTab, aLabel, { beforeTabOpen, isContentTitle, isURL } = {}) {
-+      if (!aTab._zenContentsVisible && !aTab._zenChangeLabelFlag && !aTab._labelIsInitialTitle && !gZenWorkspaces.privateWindowOrDisabled) {
++    _setTabLabel(aTab, aLabel, { beforeTabOpen, isContentTitle, isURL, _zenChangeLabelFlag } = {}) {
++      if (!aTab._zenContentsVisible && !aTab._zenChangeLabelFlag && !aTab._labelIsInitialTitle && !gZenWorkspaces.privateWindowOrDisabled && !_zenChangeLabelFlag) {
 +        return false;
 +      }
 +      aLabel = (typeof aTab.zenStaticLabel === "string" && aTab.zenStaticLabel) ? aTab.zenStaticLabel : aLabel;
@@ -198,7 +200,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        if (!aLabel || aLabel.includes("about:reader?")) {
          return false;
        }
-@@ -2067,7 +2152,7 @@
+@@ -2096,7 +2181,7 @@
          newIndex = this.selectedTab._tPos + 1;
        }
  
@@ -207,7 +209,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          if (this.isTabGroupLabel(targetTab)) {
            throw new Error(
              "Replacing a tab group label with a tab is not supported"
-@@ -2342,6 +2427,7 @@
+@@ -2371,6 +2456,7 @@
        uriIsAboutBlank,
        userContextId,
        skipLoad,
@@ -215,17 +217,17 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
      } = {}) {
        let b = document.createXULElement("browser");
        // Use the JSM global to create the permanentKey, so that if the
-@@ -2415,8 +2501,7 @@
+@@ -2444,8 +2530,7 @@
          // we use a different attribute name for this?
          b.setAttribute("name", name);
        }
 -
--      if (this._allowTransparentBrowser) {
+-      if (AIWindow.isAIWindowActive(window) || this._allowTransparentBrowser) {
 +      if (this._allowTransparentBrowser || _forZenEmptyTab) {
          b.setAttribute("transparent", "true");
        }
  
-@@ -2581,7 +2666,7 @@
+@@ -2610,7 +2695,7 @@
  
        let panel = this.getPanel(browser);
        let uniqueId = this._generateUniquePanelID();
@@ -234,7 +236,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        aTab.linkedPanel = uniqueId;
  
        // Inject the <browser> into the DOM if necessary.
-@@ -2640,8 +2725,8 @@
+@@ -2670,8 +2755,8 @@
        // 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) {
@@ -245,7 +247,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        } else {
          aTab.linkedBrowser.browsingContext.hasSiblings = this.tabs.length > 1;
        }
-@@ -2828,7 +2913,6 @@
+@@ -2858,7 +2943,6 @@
              this.selectedTab = this.addTrustedTab(BROWSER_NEW_TAB_URL, {
                tabIndex: tab._tPos + 1,
                userContextId: tab.userContextId,
@@ -253,7 +255,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
                focusUrlBar: true,
              });
              resolve(this.selectedBrowser);
-@@ -2938,6 +3022,9 @@
+@@ -2968,6 +3052,9 @@
          schemelessInput,
          hasValidUserGestureActivation = false,
          textDirectiveUserActivation = false,
@@ -263,7 +265,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        } = {}
      ) {
        // all callers of addTab that pass a params object need to pass
-@@ -2948,10 +3035,17 @@
+@@ -2978,10 +3065,17 @@
          );
        }
  
@@ -281,7 +283,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        // If we're opening a foreground tab, set the owner by default.
        ownerTab ??= inBackground ? null : this.selectedTab;
  
-@@ -2959,6 +3053,7 @@
+@@ -2989,6 +3083,7 @@
        if (this.selectedTab.owner) {
          this.selectedTab.owner = null;
        }
@@ -289,7 +291,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
        // Find the tab that opened this one, if any. This is used for
        // determining positioning, and inherited attributes such as the
-@@ -3011,6 +3106,22 @@
+@@ -3041,6 +3136,22 @@
            noInitialLabel,
            skipBackgroundNotify,
          });
@@ -312,7 +314,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          if (insertTab) {
            // Insert the tab into the tab container in the correct position.
            this.#insertTabAtIndex(t, {
-@@ -3019,6 +3130,7 @@
+@@ -3049,6 +3160,7 @@
              ownerTab,
              openerTab,
              pinned,
@@ -320,7 +322,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
              bulkOrderedOpen,
              tabGroup: tabGroup ?? openerTab?.group,
            });
-@@ -3037,6 +3149,7 @@
+@@ -3067,6 +3179,7 @@
            openWindowInfo,
            skipLoad,
            triggeringRemoteType,
@@ -328,7 +330,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          }));
  
          if (focusUrlBar) {
-@@ -3161,6 +3274,12 @@
+@@ -3191,6 +3304,12 @@
          }
        }
  
@@ -341,7 +343,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        // Additionally send pinned tab events
        if (pinned) {
          this.#notifyPinnedStatus(t);
-@@ -3375,6 +3494,7 @@
+@@ -3426,6 +3545,7 @@
          isAdoptingGroup = false,
          isUserTriggered = false,
          telemetryUserCreateSource = "unknown",
@@ -349,7 +351,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        } = {}
      ) {
        if (
-@@ -3385,9 +3505,6 @@
+@@ -3436,9 +3556,6 @@
              !this.isSplitViewWrapper(tabOrSplitView)
          )
        ) {
@@ -359,7 +361,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        }
  
        if (!color) {
-@@ -3408,9 +3525,14 @@
+@@ -3459,9 +3576,14 @@
          label,
          isAdoptingGroup
        );
@@ -376,7 +378,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        );
        group.addTabs(tabsAndSplitViews);
  
-@@ -3531,7 +3653,7 @@
+@@ -3582,7 +3704,7 @@
        }
  
        this.#handleTabMove(tab, () =>
@@ -385,7 +387,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        );
      }
  
-@@ -3599,6 +3721,7 @@
+@@ -3666,6 +3788,7 @@
          color: group.color,
          insertBefore: newTabs[0],
          isAdoptingGroup: true,
@@ -393,7 +395,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        });
      }
  
-@@ -3746,6 +3869,7 @@
+@@ -3856,6 +3979,7 @@
          openWindowInfo,
          skipLoad,
          triggeringRemoteType,
@@ -401,7 +403,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        }
      ) {
        // If we don't have a preferred remote type (or it is `NOT_REMOTE`), and
-@@ -3815,6 +3939,7 @@
+@@ -3925,6 +4049,7 @@
            openWindowInfo,
            name,
            skipLoad,
@@ -409,7 +411,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          });
        }
  
-@@ -4003,7 +4128,7 @@
+@@ -4122,7 +4247,7 @@
          // Add a new tab if needed.
          if (!tab) {
            let createLazyBrowser =
@@ -418,7 +420,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
            let url = "about:blank";
            if (tabData.entries?.length) {
-@@ -4040,8 +4165,10 @@
+@@ -4159,8 +4284,10 @@
              insertTab: false,
              skipLoad: true,
              preferredRemoteType,
@@ -430,17 +432,17 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
            if (select) {
              tabToSelect = tab;
            }
-@@ -4053,7 +4180,8 @@
+@@ -4172,7 +4299,8 @@
            this.pinTab(tab);
            // Then ensure all the tab open/pinning information is sent.
            this._fireTabOpen(tab, {});
 -        } else if (tabData.groupId) {
 +        }
-+        if (tabData.groupId) {
++        if (tabData.groupId && tabGroupWorkingData.get(tabData.groupId)) {
            let { groupId } = tabData;
            const tabGroup = tabGroupWorkingData.get(groupId);
            // if a tab refers to a tab group we don't know, skip any group
-@@ -4067,7 +4195,10 @@
+@@ -4186,7 +4314,10 @@
                  tabGroup.stateData.id,
                  tabGroup.stateData.color,
                  tabGroup.stateData.collapsed,
@@ -452,7 +454,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
                );
                tabsFragment.appendChild(tabGroup.node);
              }
-@@ -4112,9 +4243,23 @@
+@@ -4231,9 +4362,23 @@
        // to remove the old selected tab.
        if (tabToSelect) {
          let leftoverTab = this.selectedTab;
@@ -476,7 +478,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
        if (tabs.length > 1 || !tabs[0].selected) {
          this._updateTabsAfterInsert();
-@@ -4305,11 +4450,14 @@
+@@ -4424,11 +4569,14 @@
        if (ownerTab) {
          tab.owner = ownerTab;
        }
@@ -492,7 +494,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          if (
            !bulkOrderedOpen &&
            ((openerTab &&
-@@ -4321,7 +4469,7 @@
+@@ -4440,7 +4588,7 @@
            let lastRelatedTab =
              openerTab && this._lastRelatedTabMap.get(openerTab);
            let previousTab = lastRelatedTab || openerTab || this.selectedTab;
@@ -501,7 +503,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
              tabGroup = previousTab.group;
            }
            if (
-@@ -4337,7 +4485,7 @@
+@@ -4456,7 +4604,7 @@
                  previousTab.splitview
                ) + 1;
            } else if (previousTab.visible) {
@@ -510,7 +512,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
            } else if (previousTab == FirefoxViewHandler.tab) {
              elementIndex = 0;
            }
-@@ -4365,14 +4513,14 @@
+@@ -4484,14 +4632,14 @@
        }
        // Ensure index is within bounds.
        if (tab.pinned) {
@@ -529,7 +531,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
        if (pinned && !itemAfter?.pinned) {
          itemAfter = null;
-@@ -4385,7 +4533,7 @@
+@@ -4504,7 +4652,7 @@
  
        this.tabContainer._invalidateCachedTabs();
  
@@ -538,7 +540,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          if (
            (this.isTab(itemAfter) && itemAfter.group == tabGroup) ||
            this.isSplitViewWrapper(itemAfter)
-@@ -4416,7 +4564,11 @@
+@@ -4535,7 +4683,11 @@
          const tabContainer = pinned
            ? this.tabContainer.pinnedTabsContainer
            : this.tabContainer;
@@ -550,7 +552,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        }
  
        if (tab.group?.collapsed) {
-@@ -4431,6 +4583,7 @@
+@@ -4550,6 +4702,7 @@
        if (pinned) {
          this._updateTabBarForPinnedTabs();
        }
@@ -558,7 +560,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
        TabBarVisibility.update();
      }
-@@ -4983,6 +5136,7 @@
+@@ -5102,6 +5255,7 @@
          telemetrySource,
        } = {}
      ) {
@@ -566,7 +568,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        // When 'closeWindowWithLastTab' pref is enabled, closing all tabs
        // can be considered equivalent to closing the window.
        if (
-@@ -5072,6 +5226,7 @@
+@@ -5191,6 +5345,7 @@
          if (lastToClose) {
            this.removeTab(lastToClose, aParams);
          }
@@ -574,7 +576,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        } catch (e) {
          console.error(e);
        }
-@@ -5110,6 +5265,12 @@
+@@ -5229,6 +5384,12 @@
          aTab._closeTimeNoAnimTimerId = Glean.browserTabclose.timeNoAnim.start();
        }
  
@@ -587,7 +589,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        // Handle requests for synchronously removing an already
        // asynchronously closing tab.
        if (!animate && aTab.closing) {
-@@ -5124,6 +5285,9 @@
+@@ -5243,6 +5404,9 @@
        // state).
        let tabWidth = window.windowUtils.getBoundsWithoutFlushing(aTab).width;
        let isLastTab = this.#isLastTabInWindow(aTab);
@@ -597,7 +599,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        if (
          !this._beginRemoveTab(aTab, {
            closeWindowFastpath: true,
-@@ -5172,7 +5336,13 @@
+@@ -5291,7 +5455,13 @@
          // We're not animating, so we can cancel the animation stopwatch.
          Glean.browserTabclose.timeAnim.cancel(aTab._closeTimeAnimTimerId);
          aTab._closeTimeAnimTimerId = null;
@@ -612,7 +614,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          return;
        }
  
-@@ -5306,7 +5476,7 @@
+@@ -5425,7 +5595,7 @@
            closeWindowWithLastTab != null
              ? closeWindowWithLastTab
              : !window.toolbar.visible ||
@@ -621,7 +623,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
          if (closeWindow) {
            // We've already called beforeunload on all the relevant tabs if we get here,
-@@ -5330,6 +5500,7 @@
+@@ -5449,6 +5619,7 @@
  
          newTab = true;
        }
@@ -629,7 +631,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        aTab._endRemoveArgs = [closeWindow, newTab];
  
        // swapBrowsersAndCloseOther will take care of closing the window without animation.
-@@ -5370,13 +5541,7 @@
+@@ -5489,13 +5660,7 @@
        aTab._mouseleave();
  
        if (newTab) {
@@ -644,7 +646,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        } else {
          TabBarVisibility.update();
        }
-@@ -5509,6 +5674,7 @@
+@@ -5628,6 +5793,7 @@
          this.tabs[i]._tPos = i;
        }
  
@@ -652,7 +654,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        if (!this._windowIsClosing) {
          // update tab close buttons state
          this.tabContainer._updateCloseButtons();
-@@ -5732,6 +5898,7 @@
+@@ -5851,6 +6017,7 @@
        }
  
        let excludeTabs = new Set(aExcludeTabs);
@@ -660,7 +662,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
        // If this tab has a successor, it should be selectable, since
        // hiding or closing a tab removes that tab as a successor.
-@@ -5744,15 +5911,22 @@
+@@ -5863,15 +6030,22 @@
          !excludeTabs.has(aTab.owner) &&
          Services.prefs.getBoolPref("browser.tabs.selectOwnerOnClose")
        ) {
@@ -685,7 +687,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        let tab = this.tabContainer.findNextTab(aTab, {
          direction: 1,
          filter: _tab => remainingTabs.includes(_tab),
-@@ -5766,7 +5940,7 @@
+@@ -5885,7 +6059,7 @@
        }
  
        if (tab) {
@@ -694,7 +696,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        }
  
        // If no qualifying visible tab was found, see if there is a tab in
-@@ -5787,7 +5961,7 @@
+@@ -5906,7 +6080,7 @@
          });
        }
  
@@ -703,7 +705,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
      }
  
      _blurTab(aTab) {
-@@ -5798,7 +5972,7 @@
+@@ -5917,7 +6091,7 @@
       * @returns {boolean}
       *   False if swapping isn't permitted, true otherwise.
       */
@@ -712,7 +714,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        // Do not allow transfering a private tab to a non-private window
        // and vice versa.
        if (
-@@ -5852,6 +6026,7 @@
+@@ -5971,6 +6145,7 @@
        // fire the beforeunload event in the process.  Close the other
        // window if this was its last tab.
        if (
@@ -720,7 +722,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          !remoteBrowser._beginRemoveTab(aOtherTab, {
            adoptedByTab: aOurTab,
            closeWindowWithLastTab: true,
-@@ -5863,7 +6038,7 @@
+@@ -5982,7 +6157,7 @@
        // 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.
@@ -729,7 +731,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        if (closeWindow) {
          let win = aOtherTab.ownerGlobal;
          win.windowUtils.suppressAnimation(true);
-@@ -5987,11 +6162,13 @@
+@@ -6110,11 +6285,13 @@
        }
  
        // Finish tearing down the tab that's going away.
@@ -743,7 +745,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
        this.setTabTitle(aOurTab);
  
-@@ -6193,10 +6370,10 @@
+@@ -6316,10 +6493,10 @@
        SessionStore.deleteCustomTabValue(aTab, "hiddenBy");
      }
  
@@ -756,7 +758,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          aTab.selected ||
          aTab.closing ||
          // Tabs that are sharing the screen, microphone or camera cannot be hidden.
-@@ -6254,7 +6431,8 @@
+@@ -6377,7 +6554,8 @@
       *
       * @param {MozTabbrowserTab|MozTabbrowserTabGroup|MozTabbrowserTabGroup.labelElement} aTab
       */
@@ -766,7 +768,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        if (this.tabs.length == 1) {
          return null;
        }
-@@ -6278,12 +6456,14 @@
+@@ -6401,12 +6579,14 @@
        }
  
        // tell a new window to take the "dropped" tab
@@ -777,12 +779,12 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          options,
          aTab
        );
-+      win._zenStartupSyncFlag = zenForceSync ? 'synced' : 'unsynced';
++      win._zenStartupSyncFlag = (zenForceSync || !Services.prefs.getBoolPref("zen.tabs.dnd-open-blank-window", true)) ? 'synced' : 'unsynced';
 +      return win;
      }
  
      /**
-@@ -6388,7 +6568,7 @@
+@@ -6511,7 +6691,7 @@
       *   `true` if element is a `<tab-group>`
       */
      isTabGroup(element) {
@@ -791,7 +793,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
      }
  
      /**
-@@ -6473,8 +6653,8 @@
+@@ -6596,8 +6776,8 @@
        }
  
        // Don't allow mixing pinned and unpinned tabs.
@@ -802,7 +804,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        } else {
          tabIndex = Math.max(tabIndex, this.pinnedTabCount);
        }
-@@ -6500,10 +6680,16 @@
+@@ -6623,10 +6803,16 @@
        this.#handleTabMove(
          element,
          () => {
@@ -821,7 +823,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
            if (neighbor && this.isTab(element) && tabIndex > element._tPos) {
              neighbor.after(element);
            } else {
-@@ -6561,23 +6747,31 @@
+@@ -6684,23 +6870,31 @@
      #moveTabNextTo(element, targetElement, moveBefore = false, metricsContext) {
        if (this.isTabGroupLabel(targetElement)) {
          targetElement = targetElement.group;
@@ -859,7 +861,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        } 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
-@@ -6590,14 +6784,38 @@
+@@ -6713,14 +6907,38 @@
          //    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.
@@ -899,7 +901,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          element.pinned
            ? this.tabContainer.pinnedTabsContainer
            : this.tabContainer;
-@@ -6606,11 +6824,15 @@
+@@ -6729,11 +6947,15 @@
          element,
          () => {
            if (moveBefore) {
@@ -916,7 +918,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
            }
          },
          metricsContext
-@@ -6676,10 +6898,10 @@
+@@ -6799,10 +7021,10 @@
       * @param {TabMetricsContext} [metricsContext]
       */
      moveTabToExistingGroup(aTab, aGroup, metricsContext) {
@@ -929,7 +931,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          return;
        }
        if (aTab.group && aTab.group.id === aGroup.id) {
-@@ -6751,6 +6973,7 @@
+@@ -6874,6 +7096,7 @@
  
        let state = {
          tabIndex: tab._tPos,
@@ -937,7 +939,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        };
        if (tab.visible) {
          state.elementIndex = tab.elementIndex;
-@@ -6777,7 +7000,7 @@
+@@ -6903,7 +7126,7 @@
        let changedTabGroup =
          previousTabState.tabGroupId != currentTabState.tabGroupId;
  
@@ -946,7 +948,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
          tab.dispatchEvent(
            new CustomEvent("TabMove", {
              bubbles: true,
-@@ -6818,6 +7041,10 @@
+@@ -6942,6 +7165,10 @@
  
        moveActionCallback();
  
@@ -957,16 +959,21 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        // Clear tabs cache after moving nodes because the order of tabs may have
        // changed.
        this.tabContainer._invalidateCachedTabs();
-@@ -6869,6 +7096,18 @@
+@@ -6992,7 +7219,22 @@
+      * @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 } = {}) {
++    adoptTab(aTab, { elementIndex, tabIndex, selectTab = false, spaceId = null } = {}) {
 +      if (window.gZenWorkspaces.currentWindowIsSyncing && aTab.ownerGlobal.gZenWorkspaces?.currentWindowIsSyncing) {
 +        const tabId = aTab.id;
 +        const thisTab = window.gZenWindowSync.getItemFromWindow(window, tabId);
 +        if (thisTab) {
 +          // Just move the tab to the index
 +          this.moveTabTo(thisTab, { elementIndex, tabIndex });
++          if (spaceId) {
++            thisTab.setAttribute("zen-workspace-id", spaceId);
++          }
 +          if (selectTab) {
 +            this.selectedTab = thisTab;
 +          }
@@ -976,16 +983,16 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
        // 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
-@@ -6910,6 +7149,8 @@
+@@ -7035,6 +7277,8 @@
-         params.userContextId = aTab.getAttribute("usercontextid");
        }
+       params.skipLoad = true;
        let newTab = this.addWebTab("about:blank", params);
 +      newTab._zenContentsVisible = true;
 +      newTab.zenStaticLabel = aTab.zenStaticLabel;
-       let newBrowser = this.getBrowserForTab(newTab);
  
        aTab.container.tabDragAndDrop.finishAnimateTabMove();
-@@ -7718,7 +7959,7 @@
+ 
+@@ -7837,7 +8081,7 @@
              // preventDefault(). It will still raise the window if appropriate.
              break;
            }
@@ -994,7 +1001,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
            window.focus();
            aEvent.preventDefault();
            break;
-@@ -7735,7 +7976,6 @@
+@@ -7854,7 +8098,6 @@
          }
          case "TabGroupCollapse":
            aEvent.target.tabs.forEach(tab => {
@@ -1002,7 +1009,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
            });
            break;
          case "TabGroupCreateByUser":
-@@ -7895,7 +8135,9 @@
+@@ -8014,7 +8257,9 @@
  
          let filter = this._tabFilters.get(tab);
          if (filter) {
@@ -1012,7 +1019,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
  
            let listener = this._tabListeners.get(tab);
            if (listener) {
-@@ -8698,6 +8940,7 @@
+@@ -8817,6 +9062,7 @@
              aWebProgress.isTopLevel
            ) {
              this.mTab.setAttribute("busy", "true");
@@ -1020,7 +1027,7 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
              gBrowser._tabAttrModified(this.mTab, ["busy"]);
              this.mTab._notselectedsinceload = !this.mTab.selected;
            }
-@@ -8778,6 +9021,7 @@
+@@ -8897,6 +9143,7 @@
          // known defaults. Note we use the original URL since about:newtab
          // redirects to a prerendered page.
          const shouldRemoveFavicon =
@@ -1028,7 +1035,21 @@ index 0eaca7a58e0026237b71b2ad515efe84d9e8c779..d21c461c4e05fa5b28bc0806b07f9256
            !this.mBrowser.mIconURL &&
            !ignoreBlank &&
            !(originalLocation.spec in FAVICON_DEFAULTS);
-@@ -9803,7 +10047,7 @@ var TabContextMenu = {
+@@ -9071,13 +9318,6 @@
+             this.mBrowser.originalURI = aRequest.originalURI;
+           }
+ 
+-          if (!gBrowser._allowTransparentBrowser) {
+-            this.mBrowser.toggleAttribute(
+-              "transparent",
+-              AIWindow.isAIWindowActive(window) &&
+-                AIWindow.isAIWindowContentPage(aLocation)
+-            );
+-          }
+         }
+ 
+         let userContextId = this.mBrowser.getAttribute("usercontextid") || 0;
+@@ -9941,7 +10181,7 @@ var TabContextMenu = {
      );
      contextUnpinSelectedTabs.hidden =
        !this.contextTab.pinned || !this.multiselected;

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 9abf115062e7c86196d7cb6b8ac82a9bb63b5a65..9a38d7dc10403c1ee721b6abf33d525a4aa1f821 100644
+index ebcc072abca51ba9936d0e6d97bbd329427c0231..62e8209bbc38fb209340279e5ed3e2cc2441c48c 100644
 --- a/browser/components/tabbrowser/content/tabgroup.js
 +++ b/browser/components/tabbrowser/content/tabgroup.js
 @@ -14,11 +14,11 @@
@@ -201,7 +201,7 @@ index 9abf115062e7c86196d7cb6b8ac82a9bb63b5a65..9a38d7dc10403c1ee721b6abf33d525a
      }
  
      /**
-@@ -560,7 +640,6 @@
+@@ -569,7 +649,6 @@
            );
          } else {
            if (tabOrSplitView.pinned) {
@@ -209,7 +209,7 @@ index 9abf115062e7c86196d7cb6b8ac82a9bb63b5a65..9a38d7dc10403c1ee721b6abf33d525a
            }
            let tabToMove =
              this.ownerGlobal === tabOrSplitView.ownerGlobal
-@@ -625,7 +704,7 @@
+@@ -634,7 +713,7 @@
       */
      on_click(event) {
        let isToggleElement =
@@ -218,7 +218,7 @@ index 9abf115062e7c86196d7cb6b8ac82a9bb63b5a65..9a38d7dc10403c1ee721b6abf33d525a
          event.target === this.#overflowCountLabel;
        if (isToggleElement && event.button === 0) {
          event.preventDefault();
-@@ -696,5 +775,6 @@
+@@ -705,5 +784,6 @@
      }
    }
  

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 a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0da1d59be3 100644
+index 2760f6700056e2ae9b6a6fdad006c5b679a97233..9661404c030e6815ded926a6d91d4f24f4139f9e 100644
 --- a/browser/components/tabbrowser/content/tabs.js
 +++ b/browser/components/tabbrowser/content/tabs.js
-@@ -240,7 +240,7 @@
+@@ -244,7 +244,7 @@
          true
        )
          ? new window.TabStacking(this)
@@ -11,7 +11,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        this.tabDragAndDrop.init();
      }
  
-@@ -453,7 +453,7 @@
+@@ -450,7 +450,7 @@
        // and we're not hitting the scroll buttons.
        if (
          event.button != 0 ||
@@ -20,7 +20,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
          event.composedTarget.localName == "toolbarbutton"
        ) {
          return;
-@@ -534,7 +534,6 @@
+@@ -531,7 +531,6 @@
              });
            }
          } else if (isTabGroupLabel(event.target)) {
@@ -28,7 +28,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
          } else if (
            event.originalTarget.closest("scrollbox") &&
            !Services.prefs.getBoolPref(
-@@ -570,6 +569,9 @@
+@@ -567,6 +566,9 @@
      }
  
      on_keydown(event) {
@@ -38,7 +38,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        let { altKey, shiftKey } = event;
        let [accel, nonAccel] =
          AppConstants.platform == "macosx"
-@@ -764,7 +766,6 @@
+@@ -761,7 +763,6 @@
        this._updateCloseButtons();
  
        if (!this.#animatingGroups.size) {
@@ -46,7 +46,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        }
  
        document
-@@ -825,7 +826,7 @@
+@@ -822,7 +823,7 @@
      }
  
      get newTabButton() {
@@ -55,7 +55,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
      }
  
      get verticalMode() {
-@@ -841,6 +842,7 @@
+@@ -838,6 +839,7 @@
      }
  
      get overflowing() {
@@ -63,7 +63,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        return this.hasAttribute("overflow");
      }
  
-@@ -854,29 +856,56 @@
+@@ -851,29 +853,56 @@
        if (pinnedChildren?.at(-1)?.id == "pinned-tabs-container-periphery") {
          pinnedChildren.pop();
        }
@@ -130,7 +130,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
      }
  
      /**
-@@ -944,29 +973,28 @@
+@@ -941,29 +970,28 @@
          return this.#focusableItems;
        }
  
@@ -170,7 +170,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        this.#focusableItems = focusableItems;
  
        return this.#focusableItems;
-@@ -979,6 +1007,7 @@
+@@ -976,6 +1004,7 @@
       * focusable (ex, we don't want the splitview container to be focusable, only its children).
       */
      get dragAndDropElements() {
@@ -178,7 +178,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        if (this.#dragAndDropElements) {
          return this.#dragAndDropElements;
        }
-@@ -1050,6 +1079,7 @@
+@@ -1046,6 +1075,7 @@
      _invalidateCachedTabs() {
        this.#allTabs = null;
        this._invalidateCachedVisibleTabs();
@@ -186,7 +186,17 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
      }
  
      _invalidateCachedVisibleTabs() {
-@@ -1154,7 +1184,7 @@
+@@ -1065,7 +1095,8 @@
+ 
+     isContainerVerticalPinnedGrid(tab) {
+       return (
+-        tab.pinned &&
++        tab.hasAttribute("zen-essential") &&
++        (this._tabbrowserTabs.hasAttribute("expanded") || document.documentElement.hasAttribute("zen-sidebar-expanded")) &&
+         this.verticalMode &&
+         this.hasAttribute("expanded") &&
+         !this.expandOnHover
+@@ -1159,7 +1190,7 @@
  
        if (node == null) {
          // We have a container for non-tab elements at the end of the scrollbox.
@@ -195,7 +205,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        }
  
        node.before(tab);
-@@ -1252,7 +1282,7 @@
+@@ -1257,7 +1288,7 @@
            // 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.
@@ -204,7 +214,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
            const newTab2 = this.newTabButton;
            const newTabVertical = document.getElementById(
              "vertical-tabs-newtab-button"
-@@ -1353,8 +1383,10 @@
+@@ -1358,8 +1389,10 @@
       */
      _handleTabSelect(aInstant) {
        let selectedTab = this.selectedItem;
@@ -215,7 +225,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        selectedTab._notselectedsinceload = false;
      }
  
-@@ -1363,7 +1395,7 @@
+@@ -1368,7 +1401,7 @@
       * @param {boolean} [shouldScrollInstantly=false]
       */
      #ensureTabIsVisible(tab, shouldScrollInstantly = false) {
@@ -224,7 +234,7 @@ index a61b4e7af40f1404bf3555a7011c6211de917635..69e3e360b3040dfcb4541bda57e88b0d
        if (arrowScrollbox?.overflowing) {
          arrowScrollbox.ensureElementIsVisible(tab, shouldScrollInstantly);
        }
-@@ -1496,7 +1528,7 @@
+@@ -1501,7 +1534,7 @@
      }
  
      _notifyBackgroundTab(aTab) {

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 dc8ca021feff9e5c623dd2e9b3e3a8d6f55aa461..b6382bdcfef0cf6c2975fdb6f1a3c9b5c53f81af 100644
+index 2dff3603fda9d70d875367fc2b9a05ea5f8eb8c9..0ed283c65f69f00236957aefcb608209e35a3f7c 100644
 --- a/browser/components/urlbar/UrlbarController.sys.mjs
 +++ b/browser/components/urlbar/UrlbarController.sys.mjs
 @@ -302,7 +302,6 @@ export class UrlbarController {

src/browser/components/urlbar/UrlbarMuxerStandard-sys-mjs.patch

@@ -1,8 +1,17 @@
 diff --git a/browser/components/urlbar/UrlbarMuxerStandard.sys.mjs b/browser/components/urlbar/UrlbarMuxerStandard.sys.mjs
-index c12d875172650dddfe7de623a776149517c83302..66e923ed2c84e350dd7ba7a20e362666cec8f307 100644
+index 000a00f3e56c2f1d3bf4eec8c4924228de1cb418..f91f8cf38f0ba9c403bc284a7cdaaee17435b258 100644
 --- a/browser/components/urlbar/UrlbarMuxerStandard.sys.mjs
 +++ b/browser/components/urlbar/UrlbarMuxerStandard.sys.mjs
-@@ -854,6 +854,7 @@ class MuxerUnifiedComplete extends UrlbarMuxer {
+@@ -839,11 +839,16 @@ class MuxerUnifiedComplete extends UrlbarMuxer {
+       result.providerName == "UrlbarProviderHeuristicFallback" &&
+       state.context.heuristicResult?.providerName !=
+         "UrlbarProviderHeuristicFallback"
++      && !(
++        result.type == UrlbarUtils.RESULT_TYPE.SEARCH &&
++        state.context.heuristicResult?.type == UrlbarUtils.RESULT_TYPE.URL
++      )
+     ) {
+       return false;
      }
  
      if (result.providerName == "UrlbarProviderTabToSearch") {
@@ -10,7 +19,7 @@ index c12d875172650dddfe7de623a776149517c83302..66e923ed2c84e350dd7ba7a20e362666
        // Discard the result if a tab-to-search result was added already.
        if (!state.canAddTabToSearch) {
          return false;
-@@ -1500,7 +1501,9 @@ class MuxerUnifiedComplete extends UrlbarMuxer {
+@@ -1490,7 +1495,9 @@ class MuxerUnifiedComplete extends UrlbarMuxer {
        usedLimits.maxResultCount++;
      }
  

src/browser/components/urlbar/UrlbarPrefs-sys-mjs.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/components/urlbar/UrlbarPrefs.sys.mjs b/browser/components/urlbar/UrlbarPrefs.sys.mjs
-index 41e8aa0ee37fef0d24d41f2c4e776c39ed3895f6..293e993175bbbd67fa1541db6b9419b687de7fcd 100644
+index e09c9b6007c29ea31005a69cf458ce502b0df361..5846f943c03b2b36a36c1e4a8dbbd9a80ff10fe0 100644
 --- a/browser/components/urlbar/UrlbarPrefs.sys.mjs
 +++ b/browser/components/urlbar/UrlbarPrefs.sys.mjs
-@@ -759,6 +759,7 @@ function makeResultGroups({ showSearchSuggestionsFirst }) {
+@@ -760,6 +760,7 @@ function makeDefaultResultGroups({ showSearchSuggestionsFirst }) {
     */
    let rootGroup = {
      children: [

src/browser/components/urlbar/UrlbarProviderHeuristicFallback-sys-mjs.patch

@@ -0,0 +1,42 @@
+diff --git a/browser/components/urlbar/UrlbarProviderHeuristicFallback.sys.mjs b/browser/components/urlbar/UrlbarProviderHeuristicFallback.sys.mjs
+index 1e159d12ffdc39be87046689b05022813ea925ac..cba7168eeffa54d2c576982927f096b21e039c83 100644
+--- a/browser/components/urlbar/UrlbarProviderHeuristicFallback.sys.mjs
++++ b/browser/components/urlbar/UrlbarProviderHeuristicFallback.sys.mjs
+@@ -77,22 +77,26 @@ export class UrlbarProviderHeuristicFallback extends UrlbarProvider {
+         // Since we can't tell if this is a real URL and whether the user wants
+         // to visit or search for it, we provide an alternative searchengine
+         // match if the string looks like an alphanumeric origin or an e-mail.
+-        let str = queryContext.searchString;
+-        if (!URL.canParse(str)) {
+-          if (
+-            lazy.UrlbarPrefs.get("keyword.enabled") &&
+-            (lazy.UrlUtils.looksLikeOrigin(str, {
+-              noIp: true,
+-              noPort: true,
+-            }) ||
+-              lazy.UrlUtils.REGEXP_COMMON_EMAIL.test(str))
+-          ) {
++        let trimmedSearchString = queryContext.trimmedSearchString;
++        let [searchCandidate] = UrlbarUtils.stripPrefixAndTrim(
++          trimmedSearchString,
++          {
++            trimSlash: true,
++           }
++        );
++        if (
++          lazy.UrlbarPrefs.get("keyword.enabled") &&
++          (lazy.UrlUtils.looksLikeUrl(searchCandidate) ||
++            lazy.UrlUtils.looksLikeOrigin(searchCandidate, {
++              allowPartialNumericalTLDs: true,
++            }) !== lazy.UrlUtils.LOOKS_LIKE_ORIGIN.NONE ||
++            lazy.UrlUtils.REGEXP_COMMON_EMAIL.test(trimmedSearchString))
++        ) {
+             let searchResult = await this._engineSearchResult({ queryContext });
+             if (instance != this.queryInstance) {
+               return;
+             }
+             addCallback(this, searchResult);
+-          }
+         }
+         return;
+       }

src/browser/components/urlbar/UrlbarResult-sys-mjs.patch

@@ -1,8 +1,8 @@
 diff --git a/browser/components/urlbar/UrlbarResult.sys.mjs b/browser/components/urlbar/UrlbarResult.sys.mjs
-index 99f331b2c6e4f8eda1bda02cbc6bc6d3f9f4a572..d504632a3f689aefb7d22b863649cb1a8bb3c6a4 100644
+index e6eccc010ed3b4595c0aabb1e7d528b20ce1be9b..b71466ebfad0edecb8d7b78ffbe20a95cd69df98 100644
 --- a/browser/components/urlbar/UrlbarResult.sys.mjs
 +++ b/browser/components/urlbar/UrlbarResult.sys.mjs
-@@ -179,6 +179,10 @@ export class UrlbarResult {
+@@ -178,6 +178,10 @@ export class UrlbarResult {
      return this.#heuristic;
    }
  

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 b97fa81cef276e4bb22414b7c182e00b4bb835dc..1f489eceead0aa331ace59281cb777db5e635366 100644
+index caceb63a04fe282d7c906e27a6a2cfebc1ec8cda..74e395e649dd2cbe84683cb583d641b5596082d4 100644
 --- a/browser/components/urlbar/UrlbarUtils.sys.mjs
 +++ b/browser/components/urlbar/UrlbarUtils.sys.mjs
 @@ -81,6 +81,7 @@ export var UrlbarUtils = {
@@ -18,7 +18,7 @@ index b97fa81cef276e4bb22414b7c182e00b4bb835dc..1f489eceead0aa331ace59281cb777db
    }),
  
    // Per-result exposure telemetry.
-@@ -552,6 +554,8 @@ export var UrlbarUtils = {
+@@ -561,6 +563,8 @@ export var UrlbarUtils = {
            return this.RESULT_GROUP.HEURISTIC_FALLBACK;
          case "UrlbarProviderHistoryUrlHeuristic":
            return this.RESULT_GROUP.HEURISTIC_HISTORY_URL;

src/browser/components/urlbar/UrlbarView-sys-mjs.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/components/urlbar/UrlbarView.sys.mjs b/browser/components/urlbar/UrlbarView.sys.mjs
-index 6d6cc27e203a5799683a4e6eae1007ff30a69cd0..953c5cd09bcfd832d8ad11016977509f55935eb7 100644
+index cba492223601a8aa4656d9dc60a09faeda9f2313..a40bd5d46912389ef7208c4c7b481027444400fd 100644
 --- a/browser/components/urlbar/UrlbarView.sys.mjs
 +++ b/browser/components/urlbar/UrlbarView.sys.mjs
 @@ -618,7 +618,7 @@ export class UrlbarView {
@@ -11,7 +11,7 @@ index 6d6cc27e203a5799683a4e6eae1007ff30a69cd0..953c5cd09bcfd832d8ad11016977509f
          // Try to reuse the cached top-sites context. If it's not cached, then
          // there will be a gap of time between when the input is focused and
          // when the view opens that can be perceived as flicker.
-@@ -2852,6 +2852,8 @@ export class UrlbarView {
+@@ -2871,6 +2871,8 @@ export class UrlbarView {
        if (row?.hasAttribute("row-selectable")) {
          row?.toggleAttribute("selected", true);
        }
@@ -20,7 +20,7 @@ index 6d6cc27e203a5799683a4e6eae1007ff30a69cd0..953c5cd09bcfd832d8ad11016977509f
        if (element != row) {
          row?.toggleAttribute("descendant-selected", true);
        }
-@@ -3336,7 +3338,7 @@ export class UrlbarView {
+@@ -3359,7 +3361,7 @@ export class UrlbarView {
    }
  
    #enableOrDisableRowWrap() {

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 edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e56a72eb3 100644
+index 2e6e2be9d7e28c3f189131ec19a26d552d13af99..101b5a3a70c24f28a755f2ca6630a6bc6b01181b 100644
 --- a/browser/components/urlbar/content/UrlbarInput.mjs
 +++ b/browser/components/urlbar/content/UrlbarInput.mjs
 @@ -68,6 +68,13 @@ const lazy = XPCOMUtils.declareLazy({
@@ -16,7 +16,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
  const UNLIMITED_MAX_RESULTS = 99;
  
  let getBoundsWithoutFlushing = element =>
-@@ -630,7 +637,16 @@ export class UrlbarInput extends HTMLElement {
+@@ -649,7 +656,16 @@ export class UrlbarInput extends HTMLElement {
      // See _on_select().  HTMLInputElement.select() dispatches a "select"
      // event but does not set the primary selection.
      this._suppressPrimaryAdjustment = true;
@@ -33,7 +33,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      this._suppressPrimaryAdjustment = false;
    }
  
-@@ -704,6 +720,10 @@ export class UrlbarInput extends HTMLElement {
+@@ -723,6 +739,10 @@ export class UrlbarInput extends HTMLElement {
      hideSearchTerms = false,
      isSameDocument = false,
    } = {}) {
@@ -44,7 +44,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      if (!this.#isAddressbar) {
        throw new Error(
          "Cannot set URI for UrlbarInput that is not an address bar"
-@@ -985,8 +1005,16 @@ export class UrlbarInput extends HTMLElement {
+@@ -1012,8 +1032,16 @@ export class UrlbarInput extends HTMLElement {
          return;
        }
      }
@@ -62,7 +62,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
    }
  
    /**
-@@ -1405,7 +1433,11 @@ export class UrlbarInput extends HTMLElement {
+@@ -1432,7 +1460,11 @@ export class UrlbarInput extends HTMLElement {
      }
  
      if (!this.#providesSearchMode(result)) {
@@ -75,7 +75,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      }
  
      if (isCanonized) {
-@@ -2529,6 +2561,32 @@ export class UrlbarInput extends HTMLElement {
+@@ -2598,6 +2630,32 @@ export class UrlbarInput extends HTMLElement {
      await this.#updateLayoutBreakoutDimensions();
    }
  
@@ -108,7 +108,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
    startLayoutExtend() {
      if (!this.#allowBreakout || this.hasAttribute("breakout-extend")) {
        // Do not expand if the Urlbar does not support being expanded or it is
-@@ -2543,6 +2601,13 @@ export class UrlbarInput extends HTMLElement {
+@@ -2612,6 +2670,13 @@ export class UrlbarInput extends HTMLElement {
  
      this.setAttribute("breakout-extend", "true");
  
@@ -122,14 +122,17 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      // 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")) {
-@@ -2562,6 +2627,24 @@ export class UrlbarInput extends HTMLElement {
+@@ -2631,6 +2696,27 @@ export class UrlbarInput extends HTMLElement {
        return;
      }
  
 +    if (this._zenHandleUrlbarClose) {
 +      this._zenHandleUrlbarClose();
++    } else if (!this._untrimmedValue || this.searchMode) {
++      // Restore the current page URL when the urlbar is empty on blur
++      this.handleRevert();
 +    }
-+    
++
 +    // Arc like URLbar: Blur the input on exit
 +    const zenToolbox = this.document.getElementById("navigator-toolbox");
 +    this.window.document.documentElement.setAttribute("supress-primary-adjustment", !(
@@ -147,7 +150,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      this.removeAttribute("breakout-extend");
      this.#updateTextboxPosition();
    }
-@@ -2592,7 +2675,7 @@ export class UrlbarInput extends HTMLElement {
+@@ -2661,7 +2747,7 @@ export class UrlbarInput extends HTMLElement {
      forceUnifiedSearchButtonAvailable = false
    ) {
      let prevState = this.getAttribute("pageproxystate");
@@ -156,7 +159,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      this.setAttribute("pageproxystate", state);
      this._inputContainer.setAttribute("pageproxystate", state);
      this._identityBox?.setAttribute("pageproxystate", state);
-@@ -2846,10 +2929,12 @@ export class UrlbarInput extends HTMLElement {
+@@ -2915,10 +3001,12 @@ export class UrlbarInput extends HTMLElement {
        return;
      }
      this.style.top = px(
@@ -169,7 +172,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      );
    }
  
-@@ -2908,9 +2993,10 @@ export class UrlbarInput extends HTMLElement {
+@@ -2977,9 +3065,10 @@ export class UrlbarInput extends HTMLElement {
            return;
          }
  
@@ -181,7 +184,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
          );
          this.style.setProperty(
            "--urlbar-height",
-@@ -3344,6 +3430,7 @@ export class UrlbarInput extends HTMLElement {
+@@ -3413,6 +3502,7 @@ export class UrlbarInput extends HTMLElement {
    }
  
    _toggleActionOverride(event) {
@@ -189,7 +192,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      if (
        event.keyCode == KeyEvent.DOM_VK_SHIFT ||
        event.keyCode == KeyEvent.DOM_VK_ALT ||
-@@ -3447,8 +3534,8 @@ export class UrlbarInput extends HTMLElement {
+@@ -3516,8 +3606,8 @@ export class UrlbarInput extends HTMLElement {
      if (!this.#isAddressbar) {
        return val;
      }
@@ -200,7 +203,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
        : val;
      // Only trim value if the directionality doesn't change to RTL and we're not
      // showing a strikeout https protocol.
-@@ -3754,6 +3841,7 @@ export class UrlbarInput extends HTMLElement {
+@@ -3824,6 +3914,7 @@ export class UrlbarInput extends HTMLElement {
      resultDetails = null,
      browser = this.window.gBrowser.selectedBrowser
    ) {
@@ -208,7 +211,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      if (this.#isAddressbar) {
        this.#prepareAddressbarLoad(
          url,
-@@ -3861,6 +3949,10 @@ export class UrlbarInput extends HTMLElement {
+@@ -3935,6 +4026,10 @@ export class UrlbarInput extends HTMLElement {
        }
        reuseEmpty = true;
      }
@@ -219,7 +222,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      if (
        where == "tab" &&
        reuseEmpty &&
-@@ -3868,6 +3960,9 @@ export class UrlbarInput extends HTMLElement {
+@@ -3942,6 +4037,9 @@ export class UrlbarInput extends HTMLElement {
      ) {
        where = "current";
      }
@@ -229,7 +232,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      return where;
    }
  
-@@ -4122,6 +4217,7 @@ export class UrlbarInput extends HTMLElement {
+@@ -4196,6 +4294,7 @@ export class UrlbarInput extends HTMLElement {
        this.setResultForCurrentValue(null);
        this.handleCommand();
        this.controller.clearLastQueryContextCache();
@@ -237,7 +240,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
  
        this._suppressStartQuery = false;
      });
-@@ -4129,7 +4225,6 @@ export class UrlbarInput extends HTMLElement {
+@@ -4203,7 +4302,6 @@ export class UrlbarInput extends HTMLElement {
      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.
@@ -245,7 +248,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
  
        let controller =
          this.document.commandDispatcher.getControllerForCommand("cmd_paste");
-@@ -4239,7 +4334,11 @@ export class UrlbarInput extends HTMLElement {
+@@ -4319,7 +4417,11 @@ export class UrlbarInput extends HTMLElement {
      if (!engineName && !source && !this.hasAttribute("searchmode")) {
        return;
      }
@@ -258,7 +261,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      if (this._searchModeIndicatorTitle) {
        this._searchModeIndicatorTitle.textContent = "";
        this._searchModeIndicatorTitle.removeAttribute("data-l10n-id");
-@@ -4549,6 +4648,7 @@ export class UrlbarInput extends HTMLElement {
+@@ -4629,6 +4731,7 @@ export class UrlbarInput extends HTMLElement {
  
      this.document.l10n.setAttributes(
        this.inputField,
@@ -266,7 +269,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
        l10nId,
        l10nId == "urlbar-placeholder-with-name"
          ? { name: engineName }
-@@ -4662,6 +4762,11 @@ export class UrlbarInput extends HTMLElement {
+@@ -4742,6 +4845,11 @@ export class UrlbarInput extends HTMLElement {
    }
  
    _on_click(event) {
@@ -278,7 +281,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
      switch (event.target) {
        case this.inputField:
        case this._inputContainer:
-@@ -4740,7 +4845,7 @@ export class UrlbarInput extends HTMLElement {
+@@ -4820,7 +4928,7 @@ export class UrlbarInput extends HTMLElement {
        }
      }
  
@@ -287,7 +290,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
        this.view.autoOpen({ event });
      } else {
        if (this._untrimOnFocusAfterKeydown) {
-@@ -4780,9 +4885,16 @@ export class UrlbarInput extends HTMLElement {
+@@ -4860,9 +4968,16 @@ export class UrlbarInput extends HTMLElement {
    }
  
    _on_mousedown(event) {
@@ -305,7 +308,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
          if (
            event.composedTarget != this.inputField &&
            event.composedTarget != this._inputContainer
-@@ -4792,6 +4904,10 @@ export class UrlbarInput extends HTMLElement {
+@@ -4872,6 +4987,10 @@ export class UrlbarInput extends HTMLElement {
  
          this.focusedViaMousedown = !this.focused;
          this._preventClickSelectsAll = this.focused;
@@ -316,7 +319,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
  
          // Keep the focus status, since the attribute may be changed
          // upon calling this.focus().
-@@ -4827,7 +4943,7 @@ export class UrlbarInput extends HTMLElement {
+@@ -4907,7 +5026,7 @@ export class UrlbarInput extends HTMLElement {
          }
          // 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.
@@ -325,7 +328,7 @@ index edb0482f0bfb22c70a585b0770e5b0437983779e..545f65db4fe8b807b388d5552842cd9e
            break;
          }
  
-@@ -5155,7 +5271,7 @@ export class UrlbarInput extends HTMLElement {
+@@ -5235,7 +5354,7 @@ export class UrlbarInput extends HTMLElement {
      // When we are in actions search mode we can show more results so
      // increase the limit.
      let maxResults =

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 ae3c01650b3023a692cd4c50e33e3c3c39770c47..27a5fb0a630b9b79566be08cd5f7c9466ca30381 100644
+index 5e182ead8a17ef2e8e3e1701fe227f279d0506ff..7fc7cba4152c2682dd8ef90c35ab1a3a92e04529 100644
 --- a/browser/extensions/newtab/lib/ActivityStream.sys.mjs
 +++ b/browser/extensions/newtab/lib/ActivityStream.sys.mjs
-@@ -295,7 +295,7 @@ export const PREFS_CONFIG = new Map([
+@@ -288,7 +288,7 @@ export const PREFS_CONFIG = new Map([
      "showSponsoredTopSites",
      {
        title: "Show sponsored top sites",

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 e877b4b8a8cc6fc233025d0b58de50a68ecb9fd9..9d7d9064d0b4c62a3de3b81e852b2b49170bf8a3 100755
+index 74bfc36cb6e370b7dbf9fff6697a469c207f10d6..c5cdc832a430752340b33655d010c0348183b601 100755
 --- a/browser/installer/windows/nsis/installer.nsi
 +++ b/browser/installer/windows/nsis/installer.nsi
 @@ -836,7 +836,7 @@ Section "-InstallEndCleanup"

src/browser/modules/BrowserWindowTracker-sys-mjs.patch

@@ -1,16 +1,16 @@
 diff --git a/browser/modules/BrowserWindowTracker.sys.mjs b/browser/modules/BrowserWindowTracker.sys.mjs
-index 0cd9e9630fff20d71dc1dd7367ae6af4f7a53f71..7212c5f4745f3c93c1ede932af1b0e85580aa679 100644
+index 0f2f66e4bbc27785d53e262001f2ad7f9a1b3216..ed8b600fd2093428e01489d7dc4aa1f5365b645e 100644
 --- a/browser/modules/BrowserWindowTracker.sys.mjs
 +++ b/browser/modules/BrowserWindowTracker.sys.mjs
-@@ -326,6 +326,7 @@ export const BrowserWindowTracker = {
+@@ -331,6 +331,7 @@ export const BrowserWindowTracker = {
-     args = null,
+       args = null,
-     remote = undefined,
+       remote = undefined,
-     fission = undefined,
+       fission = undefined,
 +    zenSyncedWindow = true,
-   } = {}) {
+     } = options;
-     let windowFeatures = "chrome,dialog=no";
+ 
-     if (all) {
+     args = lazy.AIWindow.handleAIWindowOptions(options);
-@@ -382,6 +383,12 @@ export const BrowserWindowTracker = {
+@@ -390,6 +391,12 @@ export const BrowserWindowTracker = {
        windowFeatures,
        args
      );

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 646cf238ebfbd5ac1826cf47f578f66aa020199f..ba5a1950f683c4d8cb836ee9cd466c0b446f2241 100644
+index e6ef8578b460282eeb473f78c71addc43192e228..2c7418f6eb416a58166287e2c6a37c22ee12d6ea 100644
 --- a/browser/themes/linux/browser.css
 +++ b/browser/themes/linux/browser.css
 @@ -14,7 +14,6 @@
@@ -10,7 +10,7 @@ index 646cf238ebfbd5ac1826cf47f578f66aa020199f..ba5a1950f683c4d8cb836ee9cd466c0b
        }
      }
    }
-@@ -43,7 +42,8 @@
+@@ -58,7 +57,8 @@
        -moz-default-appearance: -moz-window-decorations;
        appearance: auto;
  
@@ -20,7 +20,7 @@ index 646cf238ebfbd5ac1826cf47f578f66aa020199f..ba5a1950f683c4d8cb836ee9cd466c0b
        dialog::backdrop {
          border-top-left-radius: env(-moz-gtk-csd-titlebar-radius);
          border-top-right-radius: env(-moz-gtk-csd-titlebar-radius);
-@@ -51,13 +51,11 @@
+@@ -66,13 +66,11 @@
  
        /* stylelint-disable-next-line media-query-no-invalid */
        @media -moz-pref("widget.gtk.rounded-bottom-corners.enabled") {

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 63d9641c7107c1444cb74f1536193246106f5cae..4298760fab4862e64ec74df23e00b373c5745605 100644
+index aceda010e08cd20dcfb5eb2e6f253314ea087849..9b0b4af4fded24be573d59b62b9905d15e1e2dd6 100644
 --- a/browser/themes/shared/browser-shared.css
 +++ b/browser/themes/shared/browser-shared.css
-@@ -103,7 +103,7 @@ body {
+@@ -104,7 +104,7 @@ body {
    --toolbarbutton-border-radius: var(--button-border-radius);
    --identity-box-margin-inline: 4px;
    --urlbar-min-height: max(32px, 1.4em);
@@ -11,7 +11,7 @@ index 63d9641c7107c1444cb74f1536193246106f5cae..4298760fab4862e64ec74df23e00b373
  
    /* This should be used for icons and chiclets inside the input field, as well
       as result rows. It makes the gap around them more uniform when they are
-@@ -172,8 +172,6 @@ body {
+@@ -173,8 +173,6 @@ body {
     */
    &.fullscreen-with-menubar {
      z-index: var(--browser-area-z-index-toolbox-while-animating);
@@ -20,7 +20,7 @@ index 63d9641c7107c1444cb74f1536193246106f5cae..4298760fab4862e64ec74df23e00b373
    }
  
    /* Themes define a set of toolbox foreground and background colors which we
-@@ -282,13 +280,13 @@ body {
+@@ -283,13 +281,13 @@ body {
  
    @media (-moz-platform: macos) and (not (-moz-mac-rtl)) {
      &:-moz-locale-dir(ltr) {

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 e9f0ea328cde3631ef856f44d47abb9c5cec5ee1..66ec2bc8bb716ad9e87f88f3d93f9516c9eb8052 100644
+index 3996a050162f4baa3a3ed3d09bc6b7bd0c3a1404..ba432205acde344dfec9f98333df2d4dd85c14ba 100644
 --- a/browser/themes/shared/identity-block/identity-block.css
 +++ b/browser/themes/shared/identity-block/identity-block.css
 @@ -7,7 +7,7 @@

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 ab8601e76409ad1a026763379a395dd52f503f27..3b32198dfa770d29f4e2f2b0faed5f3ff735c664 100644
+index ccae208d64af19d15b85f72a4a38ea95448ed9e9..5c184a33c1d3416d9c16e3edf1353174aea3ed03 100644
 --- a/browser/themes/shared/jar.inc.mn
 +++ b/browser/themes/shared/jar.inc.mn
-@@ -326,3 +326,5 @@
+@@ -328,3 +328,5 @@
  
    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)

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 b00139d7af878326ff303c08d5ddd47501b8c7db..7361a5e98d6ea372f6fdc583d90044d276cfb81b 100644
+index 7fbe572527a702f35434ad73ad6cda41c5c082c0..ccf7c8c5f408cec50e562a9821767ea3e22b7e3c 100644
 --- a/browser/themes/shared/tabbrowser/content-area.css
 +++ b/browser/themes/shared/tabbrowser/content-area.css
-@@ -90,7 +90,6 @@
+@@ -89,7 +89,6 @@
    min-height: 0;
  
    /* We want to be able to show the frame color behind the clipped radiused corner */
@@ -18,20 +18,20 @@ index b00139d7af878326ff303c08d5ddd47501b8c7db..7361a5e98d6ea372f6fdc583d90044d2
    }
  
    browser[type="content"] {
-@@ -392,7 +390,7 @@ split-view-footer {
+@@ -423,7 +421,7 @@ split-view-footer {
  
  .dialogStack {
    z-index: var(--browser-stack-z-index-dialog-stack);
 -  position: absolute;
 +  position: fixed;
    inset: 0;
- 
+   /* --browser-with-dialog set on browser[tabDialogShowing], we want to position the overlay
-   /* Hide tab-modal dialogs when a window-modal one is up. */
+      only on the top of the <browser> element so it doesn't overlap the DevTools toolbox */
-@@ -553,7 +551,7 @@ split-view-footer {
+@@ -590,7 +588,7 @@ split-view-footer {
  
  .dialogOverlay[topmost="true"],
  #window-modal-dialog::backdrop {
--  background-color: var(--dialog-backdrop-color);
+-  background-color: var(--background-color-overlay);
 +  background-color: light-dark(rgba(255, 255, 255, .3), rgba(0, 0, 0, .3));
  }
  

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 ffda4922c675f6159c825334cba9d49658d316ba..7b3d4d2b5c6d732a1d0074e05cc48131fe57c630 100644
+index 6a7d295bfaed7f0429a8ff5ac9b8a2db4ee911e3..d1a3a8d44bc06102adaef294dc72f8f404be17dc 100644
 --- a/browser/themes/shared/tabbrowser/ctrlTab.css
 +++ b/browser/themes/shared/tabbrowser/ctrlTab.css
 @@ -11,6 +11,7 @@

src/browser/themes/shared/tabbrowser/tabs-css.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/themes/shared/tabbrowser/tabs.css b/browser/themes/shared/tabbrowser/tabs.css
-index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dccdf3b11fc 100644
+index dff30e3f3f800e3fb499aa84450d3571e705820f..57a97e8955f3a6c9b0b8b6a9a15addd343204691 100644
 --- a/browser/themes/shared/tabbrowser/tabs.css
 +++ b/browser/themes/shared/tabbrowser/tabs.css
 @@ -21,7 +21,7 @@
@@ -23,7 +23,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
    --tab-selected-bgcolor: var(--toolbar-bgcolor);
    --tab-selected-color-scheme: var(--toolbar-color-scheme);
    &[lwt-tab-selected="light"] {
-@@ -293,7 +293,6 @@
+@@ -294,7 +294,6 @@ tab-split-view-wrapper[dragtarget] {
    }
  
    :root:not([uidensity="compact"], [sidebar-expand-on-hover]) &[pinned] {
@@ -31,7 +31,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
    }
  
    &:is([selected], [multiselected]) {
-@@ -307,6 +306,7 @@
+@@ -308,6 +307,7 @@ tab-split-view-wrapper[dragtarget] {
      border-radius: inherit;
      position: relative;
      overflow: hidden;
@@ -39,7 +39,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
  
      &::before {
        position: absolute;
-@@ -506,10 +506,6 @@
+@@ -507,10 +507,6 @@ tab-split-view-wrapper[dragtarget] {
    /* stylelint-disable-next-line media-query-no-invalid */
    @media -moz-pref("browser.tabs.fadeOutUnloadedTabs") {
      &[pending] {
@@ -50,7 +50,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
        opacity: 0.5;
        /* Fade the favicon out */
        transition-property: filter, opacity;
-@@ -526,10 +522,6 @@
+@@ -527,10 +523,6 @@ tab-split-view-wrapper[dragtarget] {
    /* stylelint-disable-next-line media-query-no-invalid */
    @media -moz-pref("browser.tabs.fadeOutExplicitlyUnloadedTabs") {
      &[pending][discarded] {
@@ -61,7 +61,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
        opacity: 0.5;
        /* Fade the favicon out */
        transition-property: filter, opacity;
-@@ -598,7 +590,7 @@
+@@ -599,7 +591,7 @@ tab-split-view-wrapper[dragtarget] {
    z-index: 1; /* Overlay tab title */
  
    #tabbrowser-tabs[orient="vertical"] & {
@@ -70,7 +70,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
    }
  
    &[crashed] {
-@@ -606,7 +598,7 @@
+@@ -607,7 +599,7 @@ tab-split-view-wrapper[dragtarget] {
    }
  
    #tabbrowser-tabs[orient="vertical"]:not([expanded]) &:not([crashed]),
@@ -79,7 +79,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
      &[soundplaying] {
        list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-playing-small.svg");
      }
-@@ -663,7 +655,7 @@
+@@ -664,7 +656,7 @@ tab-split-view-wrapper[dragtarget] {
      }
    }
  
@@ -88,7 +88,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
    &[crashed] {
      display: revert;
    }
-@@ -830,7 +822,7 @@
+@@ -831,7 +823,7 @@ 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]),
@@ -97,7 +97,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
        &:is([soundplaying], [muted], [activemedia-blocked]) {
          display: flex;
        }
-@@ -1521,7 +1513,7 @@ tab-group {
+@@ -1529,7 +1521,7 @@ tab-group {
  }
  
  #tabbrowser-tabs[orient="vertical"][expanded] {
@@ -106,7 +106,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
    &[movingtab][movingtab-addToGroup]:not([movingtab-group], [movingtab-ungroup]) .tabbrowser-tab:is(:active, [multiselected]) {
      margin-inline-start: var(--space-medium);
    }
-@@ -1999,7 +1991,7 @@ tab-group {
+@@ -2036,7 +2028,7 @@ tab-group {
    }
  }
  
@@ -115,7 +115,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
  #vertical-tabs-newtab-button {
    appearance: none;
    min-height: var(--tab-min-height);
-@@ -2010,7 +2002,7 @@ tab-group {
+@@ -2047,7 +2039,7 @@ tab-group {
    margin-inline: var(--tab-inner-inline-margin);
  
    #tabbrowser-tabs[orient="vertical"]:not([expanded]) & > .toolbarbutton-text {
@@ -124,7 +124,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
    }
  
    &:hover {
-@@ -2034,7 +2026,7 @@ tab-group {
+@@ -2071,7 +2063,7 @@ 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.
   */
@@ -133,7 +133,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
    margin-block: var(--tab-block-margin);
  }
  
-@@ -2222,7 +2214,6 @@ tab-group {
+@@ -2259,7 +2251,6 @@ tab-group {
  
    &:not([expanded]) {
      .tabbrowser-tab[pinned] {
@@ -141,7 +141,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
      }
  
      .tab-background {
-@@ -2262,8 +2253,8 @@ tab-group {
+@@ -2299,8 +2290,8 @@ tab-group {
        display: block;
        position: absolute;
        inset: auto;
@@ -152,7 +152,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
  
        &:-moz-window-inactive {
          background-image:
-@@ -2348,9 +2339,6 @@ tab-group {
+@@ -2385,9 +2376,6 @@ tab-group {
  
  :root:not([privatebrowsingmode]) :is(toolbarbutton, toolbarpaletteitem) ~ #tabbrowser-tabs,
  :root[privatebrowsingmode] :is(toolbarbutton:not(#firefox-view-button), toolbarpaletteitem:not(#wrapper-firefox-view-button)) ~ #tabbrowser-tabs {
@@ -162,7 +162,7 @@ index 310e7866b942df5c3c34815f4612a2a2ad8c42a6..d4931a0184209951ced288c894613dcc
  }
  
  :root[privatebrowsingmode] :is(#firefox-view-button, #menu_openFirefoxView) {
-@@ -2382,7 +2370,6 @@ toolbar:not(#TabsToolbar) #firefox-view-button {
+@@ -2419,7 +2407,6 @@ toolbar:not(#TabsToolbar) #firefox-view-button {
    list-style-image: url(chrome://global/skin/icons/plus.svg);
  }
  

src/browser/themes/shared/toolbarbuttons-css.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/themes/shared/toolbarbuttons.css b/browser/themes/shared/toolbarbuttons.css
-index e2b8a7cae70ed2bd3c80ee4214a09dbdb68a0d01..ab1b50a06b68cc6941789b31494b44da6aecdb19 100644
+index f681decf193605b633f1cffa493ac3b000b542bd..21ee9ce2594308aba0ae6d86e4f82bef6ef95b6d 100644
 --- a/browser/themes/shared/toolbarbuttons.css
 +++ b/browser/themes/shared/toolbarbuttons.css
 @@ -44,20 +44,6 @@

src/browser/themes/shared/urlbar-searchbar-css.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/themes/shared/urlbar-searchbar.css b/browser/themes/shared/urlbar-searchbar.css
-index edfe3e05a1b4517a4de6e09221ebdcfb5d8f1fe5..5986f88babf2b8d48ec8a5c0724787b13275aeff 100644
+index 78a2c85af51f90958b445eac53a540b382163102..7509b28c6d868a6f1c34f36330e695c163e12788 100644
 --- a/browser/themes/shared/urlbar-searchbar.css
 +++ b/browser/themes/shared/urlbar-searchbar.css
 @@ -9,7 +9,7 @@
@@ -11,16 +11,16 @@ index edfe3e05a1b4517a4de6e09221ebdcfb5d8f1fe5..5986f88babf2b8d48ec8a5c0724787b1
    --urlbar-container-border-padding: calc(var(--urlbar-container-border-width) + var(--urlbar-container-padding));
    --urlbar-margin-inline: 5px;
    --urlbar-padding-block: 4px;
-@@ -52,7 +52,7 @@
+@@ -54,7 +54,7 @@ toolbar[inactive="true"] .urlbar,
- #urlbar[usertyping] > .urlbar-input-container > #page-action-buttons > #urlbar-zoom-button,
+ .urlbar:not([usertyping]) > .urlbar-input-container > .urlbar-go-button,
- .urlbar:is(:not([usertyping]), :not([focused])) > .urlbar-input-container > .urlbar-go-button,
+ .urlbar:not(#searchbar-new, [focused]) > .urlbar-input-container > .urlbar-go-button,
- .urlbar-revert-button-container {
+ #urlbar-revert-button-container {
 -  display: none;
 +  display: none !important;
  }
  
  /* When rich suggestions are enabled the urlbar identity icon is given extra padding to
-@@ -323,10 +323,14 @@
+@@ -325,10 +325,14 @@ toolbar[inactive="true"] .urlbar,
  
  .urlbar[breakout][breakout-extend] {
    height: auto;

src/browser/themes/shared/urlbarView-css.patch

@@ -1,5 +1,5 @@
 diff --git a/browser/themes/shared/urlbarView.css b/browser/themes/shared/urlbarView.css
-index 1ba5a570cb1fe690cf88396643baba02f9265095..312891b41e1c62b4ed53f5cbd63bd3280dde7512 100644
+index 1af12e42c529481ff87539a84db20a1d6016d63a..7060711042a72c9df54c98ceb2c3ba3c850f9295 100644
 --- a/browser/themes/shared/urlbarView.css
 +++ b/browser/themes/shared/urlbarView.css
 @@ -20,7 +20,7 @@

src/browser/themes/shared/zen-icons/common/selectable/logo-github.svg

@@ -0,0 +1,5 @@
+#filter dumbComments emptyLines substitution
+# 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/.
+<svg fill="context-fill" fill-opacity="context-fill-opacity" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg"><path d="M256 32C132.3 32 32 134.9 32 261.7c0 101.5 64.2 187.5 153.2 217.9a17.56 17.56 0 003.8.4c8.3 0 11.5-6.1 11.5-11.4 0-5.5-.2-19.9-.3-39.1a102.4 102.4 0 01-22.6 2.7c-43.1 0-52.9-33.5-52.9-33.5-10.2-26.5-24.9-33.6-24.9-33.6-19.5-13.7-.1-14.1 1.4-14.1h.1c22.5 2 34.3 23.8 34.3 23.8 11.2 19.6 26.2 25.1 39.6 25.1a63 63 0 0025.6-6c2-14.8 7.8-24.9 14.2-30.7-49.7-5.8-102-25.5-102-113.5 0-25.1 8.7-45.6 23-61.6-2.3-5.8-10-29.2 2.2-60.8a18.64 18.64 0 015-.5c8.1 0 26.4 3.1 56.6 24.1a208.21 208.21 0 01112.2 0c30.2-21 48.5-24.1 56.6-24.1a18.64 18.64 0 015 .5c12.2 31.6 4.5 55 2.2 60.8 14.3 16.1 23 36.6 23 61.6 0 88.2-52.4 107.6-102.3 113.3 8 7.1 15.2 21.1 15.2 42.5 0 30.7-.3 55.5-.3 63 0 5.4 3.1 11.5 11.4 11.5a19.35 19.35 0 004-.4C415.9 449.2 480 363.1 480 261.7 480 134.9 379.7 32 256 32z"/></svg>

src/browser/themes/shared/zen-icons/icons.css

@@ -18,6 +18,11 @@
   border-radius: 100% !important;
 }
 
+#zenCreateNewPopup menuitem {
+  -moz-context-properties: fill, fill-opacity;
+  fill: currentColor;
+}
+
 #back-button {
   list-style-image: url("back.svg") !important;
 }
@@ -485,7 +490,7 @@
 }
 
 #zen-site-data-icon-button {
-  padding: 0 6px !important;
+  padding: 0 4px !important;
   border-radius: var(--urlbar-icon-border-radius) !important;
 
   & image {

src/browser/themes/shared/zen-icons/jar.inc.mn

@@ -437,6 +437,7 @@
 *  skin/classic/browser/zen-icons/selectable/lightning.svg          (../shared/zen-icons/common/selectable/lightning.svg) 
 *  skin/classic/browser/zen-icons/selectable/location.svg          (../shared/zen-icons/common/selectable/location.svg) 
 *  skin/classic/browser/zen-icons/selectable/lock-closed.svg          (../shared/zen-icons/common/selectable/lock-closed.svg) 
+*  skin/classic/browser/zen-icons/selectable/logo-github.svg          (../shared/zen-icons/common/selectable/logo-github.svg) 
 *  skin/classic/browser/zen-icons/selectable/logo-rss.svg          (../shared/zen-icons/common/selectable/logo-rss.svg) 
 *  skin/classic/browser/zen-icons/selectable/logo-usd.svg          (../shared/zen-icons/common/selectable/logo-usd.svg) 
 *  skin/classic/browser/zen-icons/selectable/mail.svg          (../shared/zen-icons/common/selectable/mail.svg) 

src/browser/themes/shared/zen-icons/nucleo/security-broken.svg

@@ -2,4 +2,4 @@
 # 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/.
-<svg fill="none" stroke="context-fill" stroke-width="1.5" stroke-opacity="context-fill-opacity" height="18" width="18" viewBox="0 0 18 18" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg"><path d="m 9,13.569 c -0.552,0 -1,-0.449 -1,-1 0,-0.551 0.448,-1 1,-1 0.552,0 1,0.449 1,1 0,0.551 -0.448,1 -1,1 z M 9,6.5 V 10 M 7.638,3.495 2.213,12.891 c -0.605,1.048 0.151,2.359 1.362,2.359 h 10.85 c 1.211,0 1.967,-1.31 1.362,-2.359 L 10.362,3.495 C 9.757,2.447 8.243,2.447 7.638,3.495 Z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" height="18" width="18" viewBox="0 0 18 18"><g stroke-linecap="round" stroke-width="1.5" fill="none" stroke="context-fill" stroke-opacity="context-fill-opacity" stroke-linejoin="round"><path d="M7.638,3.495L2.213,12.891c-.605,1.048,.151,2.359,1.362,2.359H14.425c1.211,0,1.967-1.31,1.362-2.359L10.362,3.495c-.605-1.048-2.119-1.048-2.724,0Z"></path><line x1="9" y1="6.5" x2="9" y2="10"></line><path d="M9,13.569c-.552,0-1-.449-1-1s.448-1,1-1,1,.449,1,1-.448,1-1,1Z" fill="context-fill" data-stroke="none" stroke="none"></path></g></svg>

src/browser/themes/shared/zen-icons/update-resources.sh

@@ -4,6 +4,13 @@
 
 # note: you need to be in the same directory as the script to run it
 
+# a list of SVG files that we should ignore when exporting, because
+# they render poorly when optimized, and we don't use them in many places
+# so the cost of optimizing them is higher than the benefit of having optimized SVGs
+do_not_optimize=(
+  "security-broken.svg"
+)
+
 if [ $(basename $PWD) != "zen-icons" ]; then
   echo "You need to be in the zen-icons directory to run this script"
   exit 1
@@ -35,6 +42,11 @@ merge_svg_paths() {
   stroke_attr=$(grep -o 'stroke="[^"]*"' "$file" | head -n 1)
   stroke_width_attr=$(grep -o 'stroke-width="[^"]*"' "$file" | head -n 1)
   stroke_opacity_attr=$(grep -o 'stroke-opacity="[^"]*"' "$file" | head -n 1)
+  # Check if the file is in the do_not_optimize list
+  if [[ " ${do_not_optimize[@]} " =~ " $(basename $file) " ]]; then
+    echo "Skipping optimization for $file"
+    return
+  fi
   # Use inkscape to merge all paths into one
   inkscape "$file" --actions="select-all;object-to-path;select-all;path-combine" --export-plain-svg --export-filename="${temp_file}"
   # optimize the svg

src/browser/themes/windows/browser-css.patch

@@ -1,16 +1,16 @@
 diff --git a/browser/themes/windows/browser.css b/browser/themes/windows/browser.css
-index b114781254018a27cd559c28d5d469fbab8673b5..79e6e21dd6e0a63237850bd315558540f050793c 100644
+index a0ffa8cac5a4d7ec220e7ee5dd7d70dba81e9026..766d69d1a2c41f3de7de9b05ef096fcccaa5c2a0 100644
 --- a/browser/themes/windows/browser.css
 +++ b/browser/themes/windows/browser.css
-@@ -39,7 +39,6 @@
+@@ -41,7 +41,6 @@
-     /* stylelint-disable-next-line media-query-no-invalid */
      @media -moz-pref("widget.windows.mica.toplevel-backdrop", 2) {
        /* For acrylic, do the same we do for popups to guarantee some contrast */
--      background-color: light-dark(rgba(255, 255, 255, 0.6), rgba(0, 0, 0, 0.6));
+       /* stylelint-disable-next-line stylelint-plugin-mozilla/use-design-tokens, stylelint-plugin-mozilla/no-base-design-tokens */
+-      background-color: light-dark(var(--color-white-alpha-60), var(--color-black-alpha-60));
      }
  
      /* Using a semitransparent background preserves the tinting from the backdrop.
-@@ -68,14 +67,13 @@
+@@ -70,14 +69,13 @@
  }
  
  /* This is needed for Windows 10, see bug 1961257 */

src/devtools/startup/DevToolsStartup-sys-mjs.patch

@@ -1,12 +1,14 @@
 diff --git a/devtools/startup/DevToolsStartup.sys.mjs b/devtools/startup/DevToolsStartup.sys.mjs
-index 40926f9620bfe8ecc1d295026b219f5b7f83860c..6811d0681c9c9b8555f0c7f72d6cd3cd42a0b1bd 100644
+index d6428524107325bc6680947f45a890991936cad4..9dd68c54b72ee17ba2cc998634b38b6155b8b388 100644
 --- a/devtools/startup/DevToolsStartup.sys.mjs
 +++ b/devtools/startup/DevToolsStartup.sys.mjs
-@@ -835,6 +835,7 @@ DevToolsStartup.prototype = {
+@@ -836,6 +836,9 @@ export class DevToolsStartup {
      // account (see bug 832984).
      const mainKeyset = doc.getElementById("mainKeyset");
      mainKeyset.parentNode.insertBefore(keyset, mainKeyset);
-+    window.dispatchEvent(new window.Event("zen-devtools-keyset-added"));
++    mainKeyset.ownerGlobal.setTimeout(() => {
-   },
++      window.dispatchEvent(new window.Event("zen-devtools-keyset-added"));
++    }, 0);
+   }
  
    /**

src/docshell/base/nsAboutRedirector-cpp.patch

@@ -1,5 +1,5 @@
 diff --git a/docshell/base/nsAboutRedirector.cpp b/docshell/base/nsAboutRedirector.cpp
-index 49779b7cc79a602e764c8346e17a02310808aab8..1b1000cf7177bd83ca6d6c484a1c3b48c7216fc9 100644
+index d6720d69cb123ab7cdc53671e49d27a8970d9607..b83748e2f6b5bb4623db709a6ac8803644c6d56a 100644
 --- a/docshell/base/nsAboutRedirector.cpp
 +++ b/docshell/base/nsAboutRedirector.cpp
 @@ -117,7 +117,7 @@ static const RedirEntry kRedirMap[] = {