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No it doesn't? I'm on Chrome right now and cannot pop out vimeo videos. Youtube appears to have a "pseudo" pop-out that I suspect is their own js-driven miniplayer thing. Just a fancy change to the DOM. You can't resize, drag the video around, or watch it from other tabs or with chrome unfocused/minimized.

> You can't resize, drag the video around, or watch from other tabs or with chrome unfocused/minimized

Umm...you can do all of those things. You might have to right click the video twice to get the picture-in-picture option (to get around the contextual menu of many video players including YouTube) or you can use the official extension that you click to popout whatever video is on the webpage.

Multiple pop-outs simultaneously?

I know it sounds silly but I've used it for SpaceX launches to keep an eye various official and unofficial streams.

Firefox puts the option right in front of me, and I regularly use it. But I have to hunt for it / even google it to find the option in Chrome.