Ever since installing Firefox Quantum there have been times when YouTube videos couldn't play at 1080p 60fps without dropping frames, but it would always work itself out within a few days. These past few months however, the problem just won't go away. I can play videos at 1080p or at 720p 60fps, but 1080p 60fps seems to drop more frames than not. This is more of an issue for me now because I just recently improved my Internet enough to play videos at that resolution and not wait for them to buffer every few minutes. I'm using the latest version of Firefox (64.0). I tried disabling Hardware Acceleration, as was suggested, and I guess it's a bit better, but it's still dropping about 50% of the frames according to YouTube's "stats for nerds." Others have said to alter Firefox's configuration, but when I tried to, Firefox warned me not to proceed unless I knew what I was doing, which I really don't. Some have recommended installing various add-ons, but there's always someone claiming it doesn't help. I've tried using Google Chrome to watch the same videos, but it causes my CPU to spike so there's constant choppiness anyway. Microsoft Edge is the only browser I've used that seems to play these videos smoothly, but I'd rather not use it if I can help it. I've used Firefox for years now. I'm comfortable with it and it serves me well in most capacities. I've seen others ask about this, but all the answers either haven't worked for me or leave me confused. I'm not the most tech-savvy guy, so I'd appreciate it if someone could dumb it down just enough to walk me through it.