Sponsor, and a shitty mobile game on top of that. Yuck. And the addon itself is closed source as well, very bold of them to say "For security reasons you should only use code that you understand or code that has been written by a developer you trust" at the bottom of the configuration page.

Does not actually enhance Youtube. Mostly you're just wondering why the video is playing at 1.1x speed now, or why it pauses videos when you click another program.

No longer working. Please fix.

Closed source.

I was contacting devs already about this addon, it was working now it is not. It allows to open 5,6,7 youtube movies simultanously when should be allowed zero playing. Ridiculous.

its not

the addon was so good, but for the past week or so i got issues with video but most usually sound stuttering/distortion, disabling the addon fixed those issues :(
I will try again if there are any updates.

Not sure what I'm doing wrong, everything's up to date, the extension is activated, I'm logged in and everything...but it just won't fire up on YT.
The Chrome extension works flawlessly for me though.

Not working. Hasn't been working for half a year now.

Causes firefox to crash randomly.

Je comptais sur cette extension pour bloquer la lecture automatique qui m'exaspère mais ça ne marche pas.

Abuses user trust by inserting ads in the settings and opening the ad-on settings page *without user interaction*. Unacceptable.

Recommended label needs to be removed.

This YouTube enhancer USED to be the best of the best. But this enhancer now so many glitches, and options that no longer work like they used to, it's no longer worthy of a 5-Star review. For starters, when you scroll the center wheel to control the volume, now it only drop by a Maximum of 10, and only by 10 if you've gone into the settings to tell it what level to drop it by on the tun of a wheel. There's so many other glitches o the options no longer working, I'd be here all morning listing them all. As above, this enhancer USED to be the best. It's not even in the Top 10 any more

It is nice that another function has been added for the reinforcement of the volume. However, in the standard output, the volume has been reduced by more than 50% so that the volume function must be forcibly switched on, so that one can even understand something from the video. Furthermore, the sound quality has been deteriorated by this function massive. It is sometimes so that you can not understand the language (the spoken) in some videos.

Further criticism is that if you click full screen, the video is stopped for 1-2 seconds as if it would be reloaded.

There are even more mistakes and bugs, but all listed here would not be possible. As soon as these bugs mentioned above is resolved immediately, there are several stars from me. Otherwise, these addon does not even earn a single star.