It seems like every week I've somehow muted the audio in a tab. I think this started a few months ago, but I can't remember seeing any sort of an "upgrade" alerting me to this new functionality. How do I get rid of it?? It's driving me nuts. I search google for a solution, and it's horrible AI search just refers me to an ancient thread that does not work.

Btw, I just saw an announcement by Mozilla about modernizing itself. How about getting rid of the crazy About:Config and making it easier for users to make changes?