Did not save the preset. After closing the equalizer window and opening again all changes where gone, no saved preset was available.

Changing EQ settings and turning the EQ off/on did not result in any sound changes.

I tried it on Bitchute.
FF Version 101.0.1
OS: Kubuntu 22.04, Kernel 5.15.0-33

Breaks some sites

works sometime

doesnt' make sense if you can't save various kinds of presets for various sites

doesn't work at all

doesn't work with audius.co

Some of sites can't play video

Does nothing.

It breaks some websites and video players

The plugin works very well at what its supposed to do, but unfortunately it has a major side affect.
It prevents video thumbnails from previewing videos across all sites and even prevents videos from playing on some sites.
So even though its a good equalizer its unusable because of its major side affect.

Add-on brake video playback like streamable and can't load messenger properly, after uninstall everything start working normally

Interferes with video playback speed on any video (youtube/twitch/etc.)

This add-on breaks playback speed settings on youtube.

This break many things, including YouTube playback speed, Google Drive audio playback, Google "define" feature's audio (when I look up a word using by searching "define", it provides a clip of that word's pronunciation, which can't be played with this add on)

I can't get it to work with Spotify on a PC. I'm looking into it. Probably me.

Didn't do anything. Did not work with Firefox 77.0.1

No perceptible difference in audio volume no matter what you do

No perceptible effect. Ubuntu Fossa Firefox 76.9 Canonical 1.0

stops streaming tv when activated!

Crap. Doesn't work reliable. Sometimes works, mostly not.