diff --git a/packages/adblocker-webextension/adblocker.ts b/packages/adblocker-webextension/adblocker.ts
index 1c9a1dae2f..0fef9ea9d8 100644
--- a/packages/adblocker-webextension/adblocker.ts
+++ b/packages/adblocker-webextension/adblocker.ts
@@ -402,10 +402,12 @@ export class WebExtensionBlocker extends FiltersEngine {
           scripts,
           styles: '',
         });
+        return;
       }
     }
 
     await Promise.all(promises);
+    sendResponse();
   };
 
   /**