"Indicator added to tabs that play audio with one-click muting" This is really useful. In my case, I usually have music playing in my browser and this allows me

"Indicator added to tabs that play audio with one-click muting" This is really useful. In my case, I usually have music playing in my browser and this allows me to quickly mute it while I watch a video. I just whish it wouldn't switch tabs when unmuting. Asynchronous call stacks sound promising as well :)