it does noting at all

Like another user mentioned, if you are using a CMS with TinyMCE this addon will inject a spam code while active. Stay well clear.

Injects spam code without user approval. Also hijacks the standard "paste without formatting" shortcut, ctrl+shift+v. Injects a script into every single TinyMCE editor in WordPress while the extension is active, meaning this extension is adding code which is then saved to your website itself. I had to go through every website I'd worked on while the extension was active, checking every page and removing the added script code from each.

It actually does not work. I observed no changes in my audio volume levels on my Mac

Using this Add-on breaks Hulu auto play and going to another episode without refreshing the page. Gives error p-dev302.

Hidden code script: moz-extension://efbb60ad-f770-47ae-8af6-ef7f4863a97b/js/app.js FULL GARBAGE

Doesn't work at all for me

Simply does not work. (for HTML5 Apps)
- Also stop with the begging to view an ad

Does not work for controlling volume for each website. Useless

Doesn't work

did not work, on windows 10 64 bit

Does not work 91.0 (64-bit)

Не работает(((((((

While yes, it is working most of the time...i just noticed that this Addon adds a

Works as promised and is easy to use.

Suddenly this extension is causing cross-site origin issues. Sketchy.

This plugin completely destroys slowmo playbacks for me (for example: 0.5 or 0.75 speed on Youtube).

This addon is currently bricking Firefox's ability to play Twitch Clips. I keep getting Twitch Error #4000. This started about 3-4 days ago. It was working fine before this.

Last update broke all videos.

It's breaking Twitch clips and some html5 based video player sites.
As soon as I disabled this addon, every video worked just fine.

carrega propagandas escondidas - detectado por kaspersky av.