It would be nice if we could set a default percentage increase for the volume so it doesn't reset when I reopen my browser.

This extension is excellent and comes highly recommended by me. However, there is one drawback that led to a deduction of one star in my rating. It concerns the process of relocating the sound bar to the next tab, which requires either pressing Ctrl-Shift-6 or navigating through the extension settings. While this task isn't overly difficult, it does present a minor inconvenience. Despite this issue, I still wholeheartedly recommend the extension.

I would imagine 600% to sound harder, but it does help.

Quite nice and useful! Doesn't work on certain cites for reasons probably out of the Add-on creator's control, but is quite useful nevertheless! Good job.

Works well, but there's a problem with the Twitch.tv website where after selecting to clip any stream, you get greeted with this error message on the next screen: "This video is either unavailable or not supported in this browser. (Error #4000)".

Turning off this add-on fixed the issue. But maybe if there was an option to disable the add-on on certain domains it'd be better than having to turn the add-on on and off depending on what website I'm at.

It works, but not in the way you might expect. The 600% boost is only true if you like loud sounding distortion. If your device has a weak builtin hardware chip amplifier, then this app may make the sound output of your device exceed its normal output levels. Then end result will be a loud distortion sound that could damage your speakers or headphones. More important than that, the loud distortion levels can result into unintended hearing loss issues for you with extended use. Please, be careful.

Very handy to have from time to time. Occasionally a random video will have it's audio balance set way too low and this is a life saver.

NOTED BUG: I use brain.fm for music and for some reason brain.fm won't play with this extension active. I tested each of my extentions independently and for some reason this one gives it trouble. I've reported it to brain.fm as well. LMK if there's a more appropriate place to report this bug.

Thanks for the tool!

Works perfectly for Youtube and Facebook videos. Just shy of five stars because this app's "homepage" redirects to a regular spam-riddled blog, making the app kinda untrustworthy.

This add-on is a serious lifesaver. The only thing I'm not 100% satisfied with is that the tab volume doesn't save when you load a new page (for example, starting the next episode of a show). That might be an unavoidable limitation on Firefox, though, and it's not a big deal to readjust the volume at all. I'm super grateful for this add-on :)

A good simple volume slider for Firefox, would be better with a dark theme

works great most of the time. but like others say, it makes some website videos not work, or if you try turning volume up some sites will break the audio.

It would have been given a 5 star, if I could set it and leave it at a setting. Better than not hearing! Much better!