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?