No longer works.

Seems not working any more?

It used to work fine a year ago. Now it's not working correctly :(

无法控制视频画质

No reason to request your data for all websites. This reeks of keylogger/malware or other security nightmare and should be removed from the mozilla store.

Don't work anymore

Didnt work.

Not working

Ne marche plus sur android

Won't work many times.

Youtube no longer supports the setPlaybackQuality API call which i assume this addon uses, so it no longer works.

Doesn't work on restart of firefox

Does not work in any version of the firefox browser.

did not actually work. videos still loaded at normal size and 360p despite my settings saying theater mode and 1080p

doesn't change videos to high resolution.

I've tried a every couple of months for past few years, never worked. I use stable branch.

Not working

Doesn't actually do anything to youtube videos.