Changelog
- Will now allow you to "fix" failed update checks on non-webstore extensions that are caused by missing permissions (#59). To do so, click on the wrench icon that appears when an update check fails.
Note: There is no way (I know of) to determine if the update failed due to CORS policy or some other network error, so this may not always fix the issue. If you still see an Update Failed notice after granting the permission then please open an issue.