As of 27 Feb the 0.4.1 update that fixes Block Channel / Block Video options is still awaiting review by Firefox but was accepted 3 days ago by Chrome if you want to try using that for the time being.

EDIT: 9 March stopped working again. Odds are a lot less people would notice anything if it wasn't for the approval delay as the developer seems to submit updates pretty quickly.

As long as it works, it's an amazing add-on

UPD:
If only Firefox approved update 0.4.5 faster...
Because the app worked great and it doesn't take much to work great.

Раньше работал исправно, но с недавнего времени перестала работать блокировка каналов и видео через контекстное меню. Всё еще можно заполнять черные списки вручную, но это же жутко неудобно.

Almost worthless now, it has remembered which channels I've blocked previously but now I cannot block videos or channels at all.

The impression is that the extension stopped working normally after the update. I hope the author will make it possible to add channels to the blacklist by name, not ID. It's better than nothing.

Great extension, I just wish I could block tags too

BLOCK VIDEO & BLOCK CHANNEL functions no longer work (and haven't been working for a month now). This extension used to be PERFECT, but it's not working at all now. Why?

Very useful and functional addon

"Disable YouTube's audio loudness normalization" 這個項目在 02/13 晚間被 Youtube 誤判為阻擋廣告，感覺很好笑。 Youtube 爛到開始隨便找人殺了？

Success!

https://mastodon.bsd.cafe/@grahamperrin/111912383703638493

the extension does everything amitbl claims. As far as youtube I have scriptblock, tampermonkey, and 7 adblockers. I find if I keep the enhancer functional theres nothing they can do.

A must have for me. It delivers what it promises. Has a lot of power under the hood; but is fully functional with just the ui too.

This addon is very useful to block unwanted content and channels that gets you irritated. My experience with this addon was flawless. Sadly, somehow now it triggers YouTube's anti-adblock systems which makes this addon unusable for me. Tried to turn off any possible other addon which might have cause this but after disabling this one - YouTube stopped blocking the video. I hope this will get fixed soon.

There is a big oversight with the design of this add-on, where if you press "block channel" there is no undo button anywhere to cancel what you have just done. You have to open up the addon, navigate the menus to find the channels you've blocked and manually delete the name of the channel you just accidentally blocked.