diff --git a/application/basilisk/base/content/tab-content.js b/application/basilisk/base/content/tab-content.js
index f66f536fa..7d294f293 100644
--- a/application/basilisk/base/content/tab-content.js
+++ b/application/basilisk/base/content/tab-content.js
@@ -869,6 +869,10 @@ addEventListener("unload", () => {
   ExtensionContent.uninit(this);
   RefreshBlocker.uninit();
 });
+#else
+addEventListener("unload", () => {
+  RefreshBlocker.uninit();
+});
 #endif
 
 addMessageListener("AllowScriptsToClose", () => {