Hello I have a problem with Firefox 87 that I am completely stumped by. Since I have updated Windows to version 20H2, my audio in Firefox became all muddy, as if only bass tones come through. Speech is completely inaudible and impossible to understand. This is a problem unique to Firefox, as other applications such as Spotify or MS Edge sound fine. Could this be a compatibility problem with my sound card? (Creative SoundBlaster ZxR) This feels unlikely as it worked before... Any tips? Thanks