diff --git a/src/manifest.json b/src/manifest.json
index 7c8991b..85e4750 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -25,6 +25,7 @@
     "idle",
     "management",
     "storage",
+    "unlimitedStorage",
     "tabs",
     "webRequestBlocking",
     "webRequest"