Hello. I have some troubles with screen tearing. While scrolling pages and playing videos more than 720p(sometimes on 720p too but it almost invisible) I watching screen tearings. I checked it on other browsers (Chrome and Opera) but the problem has only Firefox. I changed false on true in about:config layers.acceleration.force-enabled but still no result. Also I turned down graphics hardware acceleration which was recommended in that [https://support.mozilla.org/ru/questions/1117546 post] but it doesn't help me at all. I've searched everywheare but still haven't find a solution. What should i do to fix this ? My graphic - AMD Radeon Vega 8. All drivers are fresh and no errors were detected.