diff --git a/src/toolkit/content/widgets/tabbox-js.patch b/src/toolkit/content/widgets/tabbox-js.patch
index b58fca86d..5b689ab4a 100644
--- a/src/toolkit/content/widgets/tabbox-js.patch
+++ b/src/toolkit/content/widgets/tabbox-js.patch
@@ -1,5 +1,5 @@
 diff --git a/toolkit/content/widgets/tabbox.js b/toolkit/content/widgets/tabbox.js
-index 717f0583f224be2d09a7966ee5627ebab83cc07f..af809ad8f189a11c1ab9383033483db5dcd7cf96 100644
+index 717f0583f224be2d09a7966ee5627ebab83cc07f..ec251b99562f2a9b6dcfecc4588e44bbff315612 100644
 --- a/toolkit/content/widgets/tabbox.js
 +++ b/toolkit/content/widgets/tabbox.js
 @@ -213,7 +213,7 @@
@@ -16,7 +16,7 @@ index 717f0583f224be2d09a7966ee5627ebab83cc07f..af809ad8f189a11c1ab9383033483db5
          return;
        }
 -      for (let otherTab of this.allTabs) {
-+      for (let otherTab of ZenWorkspaces.allStoredTabs) {
++      for (let otherTab of window.ZenWorkspaces?.allStoredTabs ?? this.allTabs) {
          if (otherTab != tab && otherTab.selected) {
            otherTab._selected = false;
          }