Terry's web extensions to make Youtube more good ™
Youtube Ends At
Displays what time it will be when the video ends, taking playback rate into account.
Subscribe to YouTube Playlists
Easily check if there are new videos in the playlists in your library. Now with a subscriptions-like feed!
Better Youtube Interactions
Adds a small menu to like/dislike and comment on videos you're watching without having to leave fullscreen mode.
I also highly recommend using Enhancer for YouTube and SponsorBlock