not sure if this addon changes youtube playback resolution to hd like it promises or not.
reason is, because it took me under 10 seconds to remove this addon, because it forces me to use that theater mode when videos are not in full screen mode.

if i want to concentrate on video itself, then i put it on FULL SCREEN, but when i want to look at other parts of the site like recommended videos or comment section. then i want the video to be in the small compact size and stay like that until i say otherwise.

Redirects randomly.

When I open a YouTube video link it changes the resolution (does what it proposes). But when I open the YouTube homepage, it redirects me to a random YouTube post and keeps reloading the page. So I can't use YouTube's homepage

Apparently this bug is at least one year old, deducting from old comments.

Using Firefox 77.0.1 (64-bits) at Windows 10 Pro 1909

On every new Firefox update this add-on gets broken and redirects randomly on Youtube, breaking it completely.

При заходе на главную страницу YouTube, это расширение перенаправляет на разные левые ютуб-каналы и врубается циклическое обновление страницы. Это очень похоже на мошенническую монетизацию - накрутку трафика! И такой прикол ребят происходит уже как минимум год. Я не понимаю как вообще это расширение могло попасть в рекомендованные???

When go to the YouTube homepage, this extension redirects to random YouTube channels and cuts in a cyclical page refresh. This is very similar to fraudulent monetization - traffic cheats! And such has been going on for at least a year. Proof - https://support.google.com/youtube/thread/4029968?hl=en I do not understand how this extension could get into the recommended ones???

The add-on behaves as malware. Constantly refreshing the page without me having done so. The user settings don't reflect on the website. For example, selecting "Normal" for video speed, will not save as a setting and automatically go back to x2. Until the creator of the tool fixes the bugs, don't bother adding this feature to your browser. Just find a different one.

- Settings can only be change in the same session add-on is installed. Cannot change setting once browser restarted. Settings can only be change in the same session add-on is installed. Cannot change setting once browser restarted. Must uninstall, restart FF, install again.

- Enabling auto expand description will make youtube page go crazy.

- Video speed seems to have no effect.

Following only happen in the same session add-on is installed. Even force reload of YT won't fix. Must restart browser:

- Setting video quality seems to work, but YT video setting show no check mark on any resolution.

- Disabling annotation doesn't seems to work?! YT video setting button remain on.