[alpaca128]

I also use Firefox with uBlock Origin. It worked flawlessly until some time this January. It happened with the switch to a new version of the video player which changed the design and behaviour. I'd be curious if you're still on the old version or something else is different.

Roughly in that timeframe YT also successfully blocked downloads with yt-dlp for a bit. Seems like they're trying harder now because of AI scrapers.

[ssl-3]

On PC, it looks like I'm using this, from the end of January: https://github.com/gorhill/uBlock/releases/tag/1.69.0

And also this, from a couple of weeks ago: https://www.firefox.com/en-US/firefox/147.0.4/releasenotes/ (with Linux, but that probably doesn't matter at all)

And that's about it. I recently pruned some other Firefox extensions while troubleshooting ompletely unrelated issues, and all that's left is uBlock Oorigin, Dark Reader, and BitWarden.

Seriously, I've had no recent issues with Youtube ads at all and certainly none in January or February of this year. It's been smooth-enough for me on all of the platforms I mentioned before (and I use them all quite a lot, except perhaps for the BFT).

I wonder what's different on your end?

[alpaca128]

Huh, I think I figured it out. It now works again after removing the extension "Return YouTube Dislikes" which I had just kept around because why not.

Turns out if both this and uBlock are active, YouTube will refuse to work. But only uBlock works just fine.