TubeLister - Generate a YouTube playlist from your opened tabs.
NOISESUPPLY - Pandora for SoundCloud
YouTube Vanced - Vanced is a modded version of YouTube with many features such as adblocking and background playback
DiskyT - Youtube playlists done right
Tuned Rocks📺 - Discover🔎 curated Youtube videos 24/7
OrganizeTube - Create video playlists from Youtube, Vimeo and other sources