best

Funktioniert sowohl auf Youtube als auch auf Twitch hervorragend.

I've been having trouble with YouTube volume ever since I got this new computer, and just installed this add-on, and it's brilliant. I love it so much I created an account soi I could write a review. Thank you so much

Ok

It works exactly as intended, it has a powerful volume increase and works even over sound equalizer addon!!
I'm on Ubuntu-MATE 20.04 using Firefox 103 PPA from the distro (not a snap).

Thanks a lot developer, I very much appreciate it.

thank you, i do not know already if it works but you made this app, thank you