Used to work just fine, copies the video frame, sadly also screenshots the UI fade at the bottom and also captions which is good or bad but is untoggleable. Now rather than copying the frame, it opens the frame in another tab which you need to copy to actually get the frame you want.

In short, still works, but now more annoying.

Youtubeなどで、win+shift+s → D&D していたのが、Shift+右クリックで済む。しかも邪魔な表示が消えてくれる。便利で時短になる。