Watching a Youtube video? Youtube’s Miniplayer will be relayed to another Miniplayer on the Brave Browser so it can travel with you no matter the tab that you decide to open. This window Will Overlay on top of all Brave Browser UI and stay ONLY WITHIN the brave window.
Put this code in the ad blocker
Use it at your risk, but it does work on me
Origional post here
https://www.reddit.com/r/youtube/comments/1cvvlfk/how_do_i_permenently_disable_this_horrible/