The button doesn't even show-up on my toolbar and I don't see it listed when I choose customize. How do I get it to appear?

Nice audio enhancement for Firefox!

Thanks! Very usefull for online video and movie. I'm so tired of endless sound volume adjusting, so this thing is must have for me

(updated review)

It's great. It's very adjustable and the sound is pretty transparent. It activates automatically and reliably, unlike many other sound boosting addons (that either don't self activate reliably or have to be manually activated every time). It also doesn't mess up Youtube's playback speed options, they work correctly, also unlike other volume boosting addons. It doesn't work on every site under the sun, but works for many major streaming and music sites.

The only problem is that there are some audio stutters (especially on Youtube). They don't happen often, but kinda annoying. In it's defense, this is a problem that other volume boosting addons also have, so maybe there's just no way to have it working perfectly.

99% sites I've ever used work with it. Set it to medium and forget it, all YouTube videos improved now that I'm not constantly turning volume up, down and up and down over and over again. Thanks!

I use this plugin mostly on Youtube for gamestreams as i got used to FFZ on Twitch which has a build in compressor, this works great. Today i tried it for the first time on Kick.com, seemed to have a few muting issues but i got it working now and works similarly nice. I like the site specific presets a lot, well done.

works okay when it works, but now it mutes audio on several sites unless i deactivate the extension entirely. might try again in the future but it's broken at the moment.

One of the best extensions out there right now

It's perfect for badly made and unbalanced videos on the internet (one speaker is louder than another in debates, volume drops/spikes etc). Also, I don't have Netflix but I know they usually buy films with mixes for cinema (its cheaper than paying for a new mix) which has huge dynamic range so this can maybe help you reduce it and save you many volume slider adjustments. Thank you very much.

Thank you so much for this. I got new speakers and couldn't use the loudness equalization setting for windows on them and was extremely bummed out. This solved that problem for me, huge life saver thanks a ton.

It helps for sure, I needed it to listen to a round table with 4 participants who each have a different level varying from 10 to 15 DB (impression that the velocity is twice as strong or half as weak).
What is difficult is the setting without a VU meter, in order to "see" the lowest level to use it as an "uncompressed" reference, and to be able to "align" the compression of the strongest signals with the weakest. This would avoid "compressing" the signal too much, which would avoid increasing the background noise with the reverberations.
One thing that's missing is the signage and it's hard to understand, for example, if the ratio is 2:1-3:1 or 4:1 or if the attack is in milliseconds or whatever.
I managed to adjust it by ear and I don't need it often so it's fine for me, but for those who aren't too used to it, by reading the comments it seem it's not very easy for many.
It was a good idea to make this plugin, so thanks to the developer. Good job.

Works perfectly!

Love the extension and it does exactly what you'd need it to. My only feature request is to add an option for the extension to be url specific and auto turn off when you change sites. I find it I only need to use it while watching poorly leveled content, and often leave it on when I don't want to.

Thanks. Them meme reaction vids have there volumes wayy to high and low fr

EDIT: it looks like this was probably a problem on my end, likely from using more than one audio extension at once (and a resultant duplicated audio stream). I've since removed my EQ extension and this works really well. thank you!

OUTDATED:

4 stars for absolutely doing what it says on the tin. unfortunately, it makes the audio sound very bad right now. a previous review described it well, but it sounds like it could be a weird double-audio phase problem, or a slight reverb or delay. not sure, but the fact that this exists is an accomplishment in itself, so thank you!