The only one of those actually working reliably. Thank you for fixing the "original" one.

Thank you for this, truly. Removing the ads/tracking from the original is good, making it open source is great.

Works great for me, better than the original without the deceit. Even get to pin it to the toolbar now. Thank you!

works great when some youtube video has ultra low volume for some reason

Mozilla promoting spyware addons is bizarre.
Thanks for providing a clean one.

very good, does what i needed where the recommended "soundfixer" addon could not

Works fine except for DRM'd content it seems?

good

Good