diff --git a/shells/browser/chrome/manifest.json b/shells/browser/chrome/manifest.json
index 3a1dfb1db4..af72d67d0c 100644
--- a/shells/browser/chrome/manifest.json
+++ b/shells/browser/chrome/manifest.json
@@ -41,9 +41,6 @@
   },
 
   "permissions": [
-    "<all_urls>",
-    "background",
-    "tabs",
     "webNavigation",
     "file:///*",
     "http://*/*",
diff --git a/shells/browser/firefox/manifest.json b/shells/browser/firefox/manifest.json
index 02f24a0fef..f053be4709 100644
--- a/shells/browser/firefox/manifest.json
+++ b/shells/browser/firefox/manifest.json
@@ -45,9 +45,6 @@
   },
 
   "permissions": [
-    "<all_urls>",
-    "activeTab",
-    "tabs",
     "webNavigation",
     "file:///*",
     "http://*/*",