diff --git a/frontend/js/app.js b/frontend/js/app.js
index 8227584..4ad5e30 100644
--- a/frontend/js/app.js
+++ b/frontend/js/app.js
@@ -40,6 +40,7 @@ async function init() {
   UI.RightSidebarManager.init();
   UI.FindInPageManager.init();
   UI.ContextMenuManager.init();
+  UI.TabManager.init();
 
   const authOk = await Auth.AuthManager.initAuth();