diff --git a/browser/components/customizableui/CustomizeMode.sys.mjs b/browser/components/customizableui/CustomizeMode.sys.mjs
index 25eb66b96a30c86e08376577f4636e159a02c76e..9b997ab559ddade67a7390539b3b4f9275c27a20 100644
--- a/browser/components/customizableui/CustomizeMode.sys.mjs
+++ b/browser/components/customizableui/CustomizeMode.sys.mjs
@@ -503,7 +503,7 @@ export class CustomizeMode {
       this.#transitioning = true;
 
       let customizer = document.getElementById("customization-container");
-      let browser = document.getElementById("browser");
+      let browser = document.getElementById("tabbrowser-tabbox"); // ZEN: This fixes customizing mode!!! Dont remove it
       browser.hidden = true;
       customizer.hidden = false;
 
@@ -640,7 +640,7 @@ export class CustomizeMode {
     }
 
     let customizer = document.getElementById("customization-container");
-    let browser = document.getElementById("browser");
+    let browser = document.getElementById("tabbrowser-tabbox"); // ZEN: This fixes customizing mode!!! Dont remove it
     customizer.hidden = true;
     browser.hidden = false;
 
@@ -1176,6 +1176,7 @@ export class CustomizeMode {
     return (
       aNode.localName == "toolbarbutton" ||
       aNode.localName == "toolbaritem" ||
+      aNode.localName == "zen-workspace-icons" ||
       aNode.localName == "toolbarseparator" ||
       aNode.localName == "toolbarspring" ||
       aNode.localName == "toolbarspacer"
