diff --git a/shells/browser/firefox/manifest.json b/shells/browser/firefox/manifest.json
index d69d4179a1..3ef00fba01 100644
--- a/shells/browser/firefox/manifest.json
+++ b/shells/browser/firefox/manifest.json
@@ -46,8 +46,8 @@
 
   "permissions": [
     "<all_urls>",
-    "background",
     "downloads",
+    "activeTab",
     "tabs",
     "file:///*",
     "http://*/*",