De todos los que he probado, es el que mas se ajusta a mis necesidades.

This should be a default feature on Firefox

Endlich eine Möglichkeit unerwünschte Sounds stumm zu schalten.
Eine einfache, aber geniale Idee!

I HATE (!) pages that play unasked sound. Thank you for this important addon.

αριστο!!!!!!!!!!!!!!!!!!!!!!

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Seems to work as advertised. I'd love for it to have the ability to prevent html5 movies from playing as well unless whitelisted.

Using in Firefox Nightly 58.0a1, working beautifully. No more blaring audio from some webpage. Thank you!

Es realmente MUY util!

Excellente extension