Recently I tested every audio addon, that was updated during the last 12 months. This one belongs to the „600% Sound Volume“-family, which is a solid choice since a long time. Among this family there is a lot of back and forth: The original by Aliaksandr and the first privacy orientated fork by 1fexd are gone now. The latter has two legit sucessors: This addon by Savva, wich is under rough recontruction, and LEFRIEND's conservative clone, which is not open source, but the only family member to work on Soundcloud. So, make your choice, but be aware of what‘s happening next!

Mutes Bandcamp audio when adjusting at all

good addon.
and well this dont increase the volume linearly so the ddifference is the same between going from 100 to 140 and 200 to 800

It doesn't work on vkvideo, everything is fine on other sites.

even better 1000% volume

1). It doesn't go up from 100%
2). I was adjusting it with the scroll, very easy to use, now that doesn't work either. Windows 11 25H2 Updated.
WaterFox 6.6.10 And Firefox 149.0

Keeping this one for its dark mode and FOSS

can we make the 'tabs playing audio right now' list across multiple windows?

It was a very good replacement for the spyware that was removed.

seems to work how it should! thanks a lot for creating this extension!

It seems It could be both Twitch and YouTube that aren't working with it properly, where going from 100% to 120% sounds like going to 200% instead. 1fexd version defiantly still increments up less at each 10%

great addon! 100% working! it feels like the original addon except without the ads/tracking, etc.

Works just as good as the old one, if not better. And without any tracking.