Firefox 143.0.3 with 0.4.6 works fine.
It is a MUST add-on for FF browsing YouTube.
Thanks to developer for all the hard work.

Seems to work again after the recent update

very good extension that simplifies work in the browser

Love it! A block feature on Youtube just seems like such a no brainer I consider it practically malicious that it's not an inherent feature, however this extension works wonderfully and I appreciate the option to have something ACTUALLY not recommended or to block particular videos over the whole channel. I downloaded it for that one initial purpose so I hadn't read the full list of features and was very pleasantly surprised to see that I could disable Youtube shorts (the second biggest bane of my existence) as well :)

Very useful plugin to make YT bearable again. Thank you!

Just works. There is no higher praise than that.

Nice Addons

Very easy to use, and it works!

NOT WORKING as of 4/22/25
i love this extension, you can block shorts, block youtubers from feed, and auto-hide videos you've already watched which actually makes youtube usable. please update!!