diff --git a/platform/chromium/manifest.json b/platform/chromium/manifest.json
index 352dc57c5..df686a0e7 100644
--- a/platform/chromium/manifest.json
+++ b/platform/chromium/manifest.json
@@ -97,6 +97,7 @@
     "open_in_tab": true
   },
   "permissions": [
+    "alarms",
     "contextMenus",
     "privacy",
     "storage",
diff --git a/platform/opera/manifest.json b/platform/opera/manifest.json
index ea4dc7cf7..afaaad33b 100644
--- a/platform/opera/manifest.json
+++ b/platform/opera/manifest.json
@@ -93,6 +93,7 @@
   "name": "uBlock Origin",
   "options_page": "dashboard.html",
   "permissions": [
+    "alarms",
     "contextMenus",
     "privacy",
     "storage",