Get the number of notifications from GitHub.
What is GitHub Notifier?
GitHub Notifier is a Firefox add-on that allows you to receive notifications from GitHub. Simply create a personal token from GitHub and set it in the add-on preferences.
WebExtension to get notifications from GitHub.
Create a personal token from GitHub at https://github.com/settings/tokens/new with the notifications scope.
Then set this token in addon preferences.
GitHub Notifier may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.
GitHub Notifier has earned a fairly good reputation and likely can be trusted.