Have to disable on some sites like viki.com
This is really annoying.2 years without update. Is this addon abandoned?
Still 5 stars but would be nice if this could be fixed.

Finally my headphones received some kick. High5! Hoping for 4,5,6,8 channels (upmix is fine) for firefox. Keep it up! Best regards!

Das ist sehr gut! Perfect! Каращо! )

This is just what I needed. Higher pitched tones really disturb me. Thank you very much \(0.0)/

Guter Klang und leichte Einstellungen

Just about perfect

l'extention équalizer est super pratique, on peut tout gérer le top!

I like my "Audio Equalizer" by Muyoo a lot because I can boost the bass inside my "Firefox" application!

Excellent tool, preset saving possibility is very usefull !

Спасибо! Вы спасли мои вкладки с музыкой в любимой firefox :)

Excellent, it works great!