Displays a subscribe button in the Awesome Bar for YouTube channels and playlists
If you've spent much time watching YouTube, you'll have noticed a couple of things. The algorithm is constantly changing and you will not always see the channels you subscribe to, and many YouTubers advise clicking the bell icon to receive notifications when they post new videos.
Some of us want to get the full list of videos posted by YouTubers we subscribe, but either do not want an insane amount of notifications or we want a different interface to manage everything.
Fortunately, YouTube has RSS feeds for every user, channel, and playlist. This add-on adds an icon in the Awesome Bar when visiting a user or channel page or playlist on YouTube allowing you to easily find this hidden and amazing feature.
Not only will the RSS feed allow you to see all of what you're subscribed to, but it will also let you view it in a feed reader, should you choose to use one.
The icon is showing on other pages or is not functioning
Web Extensions are still being worked out in Firefox, and in 57 in particular, there are some uncontrollable issues with the visibility of the icon. If the icon is dimmer than usual, this is the cause of it, and it should be resolved by Mozilla within the next few weeks. If not, file an issue.