It broke the comment section for me; it doesn't appear anymore, even after I removed the extension.

с аддоном глючит звук

After reading this change log, It seems that you are angry because you generate not enough money with your add-on Enhancer for YouTube.
As a developer, it's okay to get paid for the time you invest, but it was your decision to offer Enhancer for YouTube for free to the users, but after reading the change log it reads more like a menace to the users!
Be the way it is a great add-on, but after this change log here my note 1 star!

expand to full screen after pressing F.Лезешь куда не надо,нахрена F на фуллскрин сделал и засыпал экран всякой куйней с иконками юслесс.Фикси все обратно

Doesn't stop the preload at all.

Has ads. They even bypassed my ad-blocker.

Mah...it doesn't work on mobile (android)
that's the only instance I personally find really convenient to be able to change video quality since firefox built in player sucks.

It slowed my browser to a crawl. Youtube videos were loading incredibly slow.

This is THE most annoying thing in that will not stay functional all day! It clears itself during or after use and I have to go back and reload it every, single time!

Where the f is option to remove Keyboards shortcuts icon from video player ?

Next video is automatically paused after loading, despite having every option related to autoplay allowing it. Not sure how to create an issue request, hope you see it here. I'll change my rating later.

Adjusted font to be too opaque in search window. spent an hour trying to fix it. Failed. Couldn't. No documentation on your add-on about adjusting it either. No idea how to make it so my font isn't 95% opaque while searching for a video.