Runs pretty well on all the video sites I've tried it on.
Needs an option for rounded corners, though.

good extension, unfortunately it gets annoyed when uploading videos to instagram and can't select thumbnails because of the PiP

When I turn off the pip icon by right-clicking on the YouTube video playback screen, the pip icon no longer appears on the video playback screen. The problem is that there is no setting to bring it back.

currently working just fine for me with hulu!