I am on Librewolf 141.0-1 and after a recent Librewolf update, every-time I hit the forward/backward (right/left) arrow keys on keyboard, the video controls on picture-in-picture, pop up and stays there for like 5 seconds. Earlier it never did that on going forward/backward using arrow keys.

I have checked about:config but there is no option for turning this feature off. At-least it would be nice to specify the time-out for the controls to disappear.

Please if anybody knows how to disable the video control popping up or specifying a time-out for the controls to disappear, let me know.

The picture-in-picture was perfect and it never needed more features IMO.