diff --git a/addon/chrome/content/tab/tab.js b/addon/chrome/content/tab/tab.js
index 5071ed5e..d0e3ca53 100644
--- a/addon/chrome/content/tab/tab.js
+++ b/addon/chrome/content/tab/tab.js
@@ -900,6 +900,9 @@ Tabmix.tabsUtils = {
             }
             this.updateOverflowMaxWidth();
             this.updateVerticalTabStrip();
+            if (Tabmix.isVersion(1340)) {
+              gURLBar.onWidgetAfterDOMChange(gURLBar.textbox.parentNode);
+            }
             break;
           }
         }
diff --git a/types/general.d.ts b/types/general.d.ts
index c8d0044c..d2007c86 100644
--- a/types/general.d.ts
+++ b/types/general.d.ts
@@ -784,8 +784,12 @@ interface gURLBar extends HTMLElement {
   _whereToOpen: (event?: Event & {__tabmix__whereToOpen?: WhereToOpen}) => WhereToOpen;
   focused: boolean;
   handleCommand(event?: Event): void;
+  onWidgetAfterDOMChange(aNode: Node): void;
   select: () => void;
   setURI: (uri?: string, dueToTabSwitch?: boolean, dueToSessionRestore?: boolean, dontShowSearchTerms?: boolean, isSameDocument?: boolean) => void;
+  textbox: Node & {
+    parentNode: Node;
+  };
   untrimmedValue: string;
   view: UrlbarView;
   value: string;