diff --git a/web/packages/extension/src/background.ts b/web/packages/extension/src/background.ts
index 5fe6e86e81a9..e8b798471525 100644
--- a/web/packages/extension/src/background.ts
+++ b/web/packages/extension/src/background.ts
@@ -227,7 +227,11 @@ async function disable() {
     await disableSWFTakeover();
 }
 
-async function onAdded(permissions: chrome.permissions.Permissions) {
+async function onAdded(
+    permissions:
+        | browser.permissions.Permissions
+        | chrome.permissions.Permissions,
+) {
     if (
         permissions.origins &&
         permissions.origins.length >= 1 &&