I love what you're doing. Would love to see a "mono" audio button in development. You ever get those annoying "my left ear really loved this video" videos? Would be great for headphones users to have a quick button to correct this common chagrin. Dear Maxime RF – please add "mono audio" to your extension's fan wish list? I am too dumb and time-poor to learn how to write my own JS. Thank you for your work.