Audio & Video Playback
Whenever I have a tab playing any form of audio, and another different tab begins playing audio, both tabs will stutter/pause for about a second, and block each other momentarily. This is especially noticeable whenever I use something like Discord, where the constant pings will frequently interrupt my YouTube video. Even when I mute the Discord tab, it still causes my YouTube video to stutter and pause.
I have tried deleting Firefox completely, and removing all old add-on/extensions, preferences, %appdata% files, etc., and nothing works. I don't get this issue at all when using Chrome or Edge, so I'm having a hard time understanding why this is happening. Many years ago, back when I first used Firefox, I never encountered this issue.
Now that I re-downloaded Firefox this last year, I've had this annoying issue without any way to remove it. I'm quickly approaching my wit's end trying to solve this issue. I have asked a few friends who use Firefox, and none of them have this issue. All the guides from this site so far have proves unhelpful in trying to resolve my issue. If you could help out, please let me know!