When using Firefox (for Android) on an older Samsung Galaxy Tab S2 (8.0") Android 7 Tablet. I see a lot of what I would describe as ''screen tearing''. I've included a couple images to show the problem. Everything was fine until a couple updates ago (maybe 3 or 4). I keep hoping it gets fixed and I have download updates as they become available. FYI... both the Samsung Internet and Chrome browsers both display fine. It does seem specific to Firefox. Also, newer devices seem to work fine.