Absolutely refused to work. Did not do a single thing it was set to and was as useful as doing nothing. Play with a fidget spinner for the same usefulness in making youtube perform better.

Not working anymore.

Last updated: Aug 29, 2024

As of Jun 30, 2026 Add-on is NON-FUNCTIONAL.

The « YouTube Auto HD + FPS » Add-on is currently Functional and has Many More Features, I suggest that Add-on instead.

not working as of 2026.06.25

Doesn't work anymore

Just doesn't work. Not on shorts or full videos, quality still rubbish and defaulting to auto or low despite decent internet and using this extension with all permissions allowed.

Doesn't do anything, YouTube keeps picking quality by itself

Constantly asks for permissions to read/change data on all websites and puts a green dot on the UI about it.

There's no reason it needs permissions to read/change data on all websites, but yet it asks for it...

not working

ne fonctionne plus

No longer changes the video quality.

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.