BETA version -- 4.2.7.116

[Дмитрий Сакович]

I used double right click on video to enable picture-in-picture mode. Firefox works fine.

Try using the built in Cent for playing video in popup window. Go to settings chrome://settings/cbBrowsing and activate "Show tip for playing video in popup window" and optional you can activate "Remember position of video popup window". After that, when you move the cursor to the upper right edge of the video being played, a pop-up button with various options will appear. the first one is the video playback in the pop-up window. In my opinion, the option is built into Cent. much more convenient than stock.