Did exactly what I wanted it to... popped a window out that could be kept on top

I just tried this add-on and it DOESN'T KEEP THE video on top. It doesn't do what it's named for. PASS THIS ONE UP and don't waist your time.

Works well enough for YouTube (doesnt have the end cards or related videos etc), would be great if it could remove the titlebar as well, and leaves a black space underneath the video making the box larger than necessary.

180526: This so much useful feature is what I am looikng for after many months. The only one problem is I do not know how much info it will get. How about the paid version?
180527: Not work well with watching live. It stops after 5-10 mins.