Videos are lagging frequently, seems like the fps drops a lot. It usually happens as soon as I pause or skip forward/backward. It doesn't depend on the source of the video, as it is the same for all the websites. My network connection is stable. Pausing or reloading doesn't help, the problem is persistent at all times. I have to skip backwards then forwards to the same spot. I use Samsung Galaxy S20 and Samsung Galaxy Tab S8. Firefox version 126.0 (Build #2016019903)