Hello, I use ubuntu on my M$ surface go2 tablet, and I wonder, if it's possible to enable video touch control (HTML5 player) on video sites other than youtube, like I have in android or chromeOS. On Android this option works always. On ChromeOS doesn't work in privacy mode (no idea why, there is no addons or extensions, just pure firefox.

I know ther is option in PiP option, but is it possible to use just double tap on screen instead of small buttons? (now double tap turns on and off full screen).