Doesn't work on firefox. It says it comes with sound packs and to just select from the dropdown but there is only a dropdown for music. It also says you can just install official opera gx mods but trying from firefox just downloads an installer for opera gx. No instructions for adding your own sound files.

i can't get the actual default opera gx browser sounds. the typing sound mod "akko lavender purple" doesn't properly install. those are the main reasons i wanted this on firefox so i'm just left disappointed