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.

please add rutube support!!!

Atualização de comentário 01/10/2023

Desenvolvedor com esta versão 118.0.5(MV3) no Firefox para o Android está levando mais tempo para acessar as configurações da extensão e antes com a versão 109.0.0(MV2) era só tocar no menu de︙> extensões > YouTube High Definition e abria muito rápido.
Agora com a versão atual está havendo um erro também ao escolher a velocidade do vídeo que quando é inciado não corresponde á velocidade definida.

Installed it on Firefox on Android and it failed to stop autoplay. I did set it to auto pause everywhere I could, but it didn't work.

Ok

Unreasonable permissions concerning user data completely unrelated to what it's supposed to do.
Worked just fine until it asked for access it doesn't need to function (Access your data for all websites).

Hope no one install that trash.

Merveilleux

an issue with autoHD extensions is, user's are greedy for more Pixels, even if they dont have a screen that is good enough. Thus the electricity for it need not be spent either and the highest resolution can usually be locked/hidden (Also, Youtube usually choses the biggest resolution that fits already by now?)
Hi Baris Derin! are you still at this? =)