I've got two reports that librewolf severely degrades the audio, which might be due to their anti-fingerprinting measures interfering with the clock that drives the audio synthesis. If that's actually what is going on, I'm going to have to work out a way to detect when these measures are in place so I can have it advise the player what the problem is. Which is a really funny problem to have, identifying a browser that's trying not to be identified.