Increase the audio on a tab, in case it's not intelligible
What is up-to-eleven?
up-to-eleven is a Firefox add-on that allows you to increase the audio on a tab, especially when it's not intelligible. Boost the audio with ease and enhance your browsing experience.
up-to-eleven is safe to use. It does not request any sensitive permissions.
up-to-eleven has earned a fairly good reputation and likely can be trusted.