It can be a bit buggy at times, but when it comes to just playing music with the screen locked, it’s perfect.
https://addons.mozilla.org/en-US/firefox/addon/video-background-play-fix/
Edit: I forgot to also mention that ad blocker extensions make sailing the seas on mobile much more manageable. Extentions, in general, have been a really nice addition.
- RiMusic https://github.com/fast4x/RiMusic
- SimpMusic https://github.com/maxrave-dev/SimpMusic
- OuterTune https://github.com/OuterTune/OuterTune
- Metrolist https://github.com/mostafaalagamy/Metrolist
- InnerTune https://github.com/z-huang/InnerTune
 - Any of these (YouTube Music) players are better choices than using an extension on a browser. 
 Also better features like lyrics, better interface…- PS: extensions can access all of your browser data, you need to trust the extensions hoping that they aren’t sending your data to some 3rd party 
- I’m good with ReVanced, thanks. - Playing YouTube on a mobile browser is finicky at best. 
- There are simpler ways - using newpipe, grayjay, etc. - It’s just a single install. But fair point. This allows you to create playlists, though. 
 




