This is what I mean
I found these answers, this is WAY too hard.
https://support.mozilla.org/en-US/questions/1341555
https://old.reddit.com/r/FirefoxCSS/comments/p485un/how_to_disable_the_audio_playing_icon/
Is there an easier solution ? To turn off these play/pause/mute button that I keep click on accidentally ? I already have good controls with "Find sound tab" audio addon and I don't need this
Gotcha, yeah... These are use cases that my approach definitely doesn't address. Hmm. All I can think of is splitting off these groups of tabs into separate windows so that the buttons have more clickable space between them.