changing default speed doesn't work

Ghost module that absolutely does not work.
There is no need to waste time writing these modules if the result obtained is zero.
Someone will have to explain to me where the recommendation of this module comes from, I have trouble understanding.
I remove it and we will not talk about it anymore.
Linux MAGEIA 9.0
FF 115.13.0esr 64 bits

Doesn't do anything on firefox mobile on android.

Does not work at all, Why still recommended?

Set to 1080p, but playing at 720
(URL: https://www.youtube.com/watch?v=tnu571p2CCw)

See here for the only addon working:
https://addons.mozilla.org/de/firefox/addon/hd-quality-toggle-for-youtube/

Não funciona

Doesn't work

i was using this extension in my linux distributions only for the last week until i realised that the quality of the videos dont go to the highest resolution set complete waste of time do not download. you can find my distros on my website called https://www.claudemods.co.uk please note im yet to remove this extension in my next update because of the inconvience caused

You need to stop fucking with the default settings.
I do not want to set subtitles to Off, nor do I want them set to On.

Also the settings UI cannot be scrolled properly and should just be a page in the settings...


And why would you set Autoplay to On as a default?

Doesn't seem to work on mobile

The newest update stopped it from working. So I went to the previous update and it worked for a while but it's inconsistent with maintaining desired video quality

It doesn't work...

It worked for a time, doesn't anymore, I tried every option, and tried different fixes. But nothing worked.

doesn't seem to work.