Doesn't seem to apply preferred resolution setting. Also the "auto play next video" setting didn't actually play the next video. On one page, the settings it was applying to change the video player size glitched out and the page was all wonky; I had to refresh for it to fix.

유튜브 상단에 공백이 생기고 전체화면 기능도 이상하게 작동하는 문제가 생김

Very useful extension, but I deduct 2 stars because

1. The mobile version doesn't work
2. The extension is licensed under GPL3, but where is the source code?

Works great except when I click the extension to open its settings, it does not open on the current version of Firefox Developer Edition.

Working ONLY in desktop mode. Only plays default 360 mode in mobile. Note 20 Ultra 5G system and browser fully updated.

Using it for a long long time. Sadly, since the last update and as mentioned by others, I have to disable and enable it again everytime I start my browser, otherwise it's not working.

After doing so, it will work until you fully close the browser.

With fixing this, I'll give it a full 5-Star because it's just so usefull.

Oct/23
Every time I start the browser I have to disable and then re-enable the add on, otherwise the icon in the task bar is non responsive. This was not happening when I installed the addon.

07/26/24
Edit:
The problem mentioned above is still not fixed.
Additionally:
Now the enabled option "Auto expand video description box" lets the screen jump to the expanded description box instead of staying focused on the video.

Still usable.

Please, fix the shortcut button.

extension is not full potential working.. you cannot click to shortcut. only way to click is open in extension menu and press off and on to this extension. but its only one time usable. after that again this problem occurs. please fix it.

Reduced from 5 to 3 stars due to recent issues. Setting to 8k doesn't seem to do anything if the video is not 8k. Instead of just loading the next highest, it defaults to 720p for some reason. Setting to 4k does not have this problem. Setting to 4k will load videos at 1440p or 1080p if 4k is not available.

Needs to add support for "Premium" quality. YT Premium quality loads videos in vp9 at literally 3x~ the bitrate of regular 1080p. In the cases where Premium is available, non-premium is in AV1 at less than 1 Mbps.

This addon is extremely useful, but has recently started having significant problems which make it much less usable.
About a week ago, the youtube HD options stopped appearing when I click on the icon in my Firefox toolbar, until I go to the addons manager and turn the addon off and then turn it on again.

Can this issue be explained or fixed?

Version : 118.0.5 (22 septembre 2023)

Ne fonctionne pas correctement depuis la dernière mise à jour, l'add-on semble planter.
- Options inaccessibles
- Configuration non prise en compte

Pour rétablir temporairement la fonctionnalité, il suffit de désactiver/réactiver l'add-on dans le gestionnaire d'add-on, mais cela ne résout pas définitivement le problème.

Messes up theater mode making videos too tall for the window.

It has only one issue: when playing the next video in a playlist for some reason causes the window to scroll down which leaves the top of the video hidden. This is not a minor issue and that's very unfortunate because this extension would be perfect otherwise.
EDIT 1: Reading back the review several users reported the same issue, some over a year ago.
EDIT 2: Workaround by commenting the scrollTo function in ythd.js and disabling auto-update.

iridium was better.