Applied common fixes

src/browser/base/content/zen-styles/zen-urlbar.css

@@ -126,6 +126,8 @@
 }
 
 :root[zen-single-toolbar='true'] {
+  --urlbar-icon-border-radius: 10px !important;
+
   .urlbar-page-action:not([open]):not(#identity-permission-box),
   #tracking-protection-icon-container {
     display: none;
@@ -301,7 +303,7 @@ button.popup-notification-dropmarker {
 #urlbar .urlbar-page-action,
 #urlbar #tracking-protection-icon-container,
 #urlbar:not([breakout-extend='true']) #identity-box:is(:not(.chromeUI), [pageproxystate='invalid']) #identity-icon-box {
-  border-radius: 8px !important;
+  border-radius: var(--urlbar-icon-border-radius) !important;
 }
 
 /* Extensions or similar */

src/browser/base/zen-components/ZenGlanceManager.mjs

@@ -38,6 +38,9 @@
     }
 
     onKeyDown(event) {
+      if (event.defaultPrevented) {
+        return;
+      }
       if (event.key === 'Escape' && this.#currentGlanceID) {
         event.preventDefault();
         event.stopPropagation();

src/browser/base/zen-components/ZenWorkspaces.mjs

@@ -1544,6 +1544,16 @@ var ZenWorkspaces = new (class extends ZenMultiWindowFeature {
     }
   }
 
+  _makeSureEmptyTabIsLast() {
+    const emptyTab = this._emptyTab;
+    if (emptyTab) {
+      const container = this.activeWorkspaceStrip;
+      if (container) {
+        container.insertBefore(emptyTab, container.lastChild);
+      }
+    }
+  }
+
   _updateMarginTopPinnedTabs(arrowscrollbox, pinnedContainer) {
     if (arrowscrollbox) {
       arrowscrollbox.style.marginTop = pinnedContainer.getBoundingClientRect().height + 'px';