Merge branch 'dev' into firefox-135

Signed-off-by: mr. m  <91018726+mauro-balades@users.noreply.github.com>

src/browser/components/customizableui/CustomizableUI-sys-mjs.patch

@@ -143,7 +143,7 @@ index e6b9b7dcfab179e7552c146eb1551b45ad042266..d9d838a7a51f67b52b69f419024cc317
      // it, so check for both cases explicitly.
      let targetContentWidth = Math.max(targetWidth, targetChildrenWidth);
 -    let isOverflowing = Math.floor(targetContentWidth) > totalAvailWidth;
-+    if (win.gZenVerticalTabsManager._hasSetSingleToolbar && this.#toolbar == 'nav-bar') return { isOverflowing: false, targetContentWidth, totalAvailWidth };
++    if (win.gZenVerticalTabsManager._hasSetSingleToolbar && this.#toolbar.id == 'nav-bar') return { isOverflowing: false, targetContentWidth, totalAvailWidth };
 +    let isOverflowing = Math.floor(targetContentWidth) + (win.gZenVerticalTabsManager._hasSetSingleToolbar ? 0.1 : 0) > totalAvailWidth;
      return { isOverflowing, targetContentWidth, totalAvailWidth };
    }

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

@@ -128,12 +128,9 @@ index ff90a70bdad6c94ec4b90027ff102972d0eb28e5..87e68c2a0663a3da3e6d86277ce2f0c5
          }
        }
  
-+      requestAnimationFrame(() => {
-+        t.setAttribute("zen-initial-fadein", "true");
-+        setTimeout(() => {
-+          t.removeAttribute("zen-initial-fadein");
-+        }, 2000);
-+      });
++      if (typeof window.gZenVerticalTabsManager !== "undefined") {
++        gZenVerticalTabsManager.animateTab(t);
++      }
 +
        // Additionally send pinned tab events
        if (pinned) {
@@ -202,7 +199,16 @@ index ff90a70bdad6c94ec4b90027ff102972d0eb28e5..87e68c2a0663a3da3e6d86277ce2f0c5
          tab.initialize();
        }
  
-@@ -4095,6 +4182,10 @@
+@@ -3715,7 +3799,7 @@
+       // Ensure we have an index if one was not provided.
+       if (typeof index != "number") {
+         // Move the new tab after another tab if needed, to the end otherwise.
+-        index = Infinity;
++        index = Services.prefs.getBoolPref("zen.view.show-newtab-button-top") ? this.pinnedTabCount : Infinity;
+         if (
+           !bulkOrderedOpen &&
+           ((openerTab &&
+@@ -4070,6 +4154,10 @@
          return;
        }
  

src/browser/components/zen-welcome/welcome.css

@@ -39,7 +39,7 @@ body {
 #welcome .zen-branding-title,
 #thanks .zen-branding-title {
   text-align: center;
-  font-size: 9rem;
+  font-size: 7rem;
 }
 
 #buttons-footer {
@@ -62,11 +62,6 @@ body {
   }
 }
 
-body:has(#welcome:not([hidden='true'])) {
-  background: var(--zen-branding-coral);
-  color: var(--zen-branding-paper);
-}
-
 body:has(:is(#welcome, #thanks):not([hidden='true'])) {
   & #buttons-footer {
     justify-content: center;