I love this extension. Its got a couple big features that are so well done that I forget that they aren't just a default feature of youtube itself, like the mini-player that pops up when you scroll down to read the video description / comments.

One small feature that I wish it had, although I don't know if it would be possible, is to have each video you click open in a separate tab by default, instead of having to middle click than manually move over to the new tab.

High playback speed (x3) breaks when holding arrow keys to skip to unloaded part of the video. It downgrades to youtube's playback speed and the addon's speed just doesn't work untill reload of the page.

Does NOT stop videos on background tabs from playing. Does NOT hide shorts. Doesn't do SHIT

it's almost perfect but i'm missing a few tools still like flipping something from portrait to landscape view etc.
Fix those things and you get a purrrrrfect 5.

Really useful, thanks!