It has a good default browser sound pack but there's no way to copy those sounds to use anywhere else.

Does what it claims to do but really performance intensive on the CPU core for some reason

The addon works really great! It brings the best of gx to firefox. I didn't have any issue.

I just have one doubt, I wanted to edit some of the downloaded mods and i couldn't find where the mods' files are stored. Is it in the extensions folder? or in another location?

I really like this extension, but I've been noticing that when, for example: I'm on YouTube and I play a video, the extension doesn't pause the music. It seems that in some YouTube videos the extension works, and in some others it doesn't

Very awesome, works out of the box, one things that annoys me a bit, is that the keyboard sound replays instead of continues whenever I type fast, it would be cool if there's an advanced mode where we can control each sound volume, because some GX mods have louder sounds than the other, regardless, great addon! definately replaced Opera GX ambient for me :)

I really like the browser sounds but a lot of sounds can not be downloaded as they say "failed to encode" when I try to add them.