uBlock Origin has kept their filters up-to-date for me. Still no ads, and no blocks from YouTube, since day 1. I did disable my other privacy extensions like Privacy Badger and Ghostery on YouTube to stay on their “good” side however.
I recently had to disable ad blocking within Enhancer for YouTube, but uBlock Origin took over and it works great so far.
Does that fix it? I disabled the whole addon because it interfered with the anti adblock measures. Unfortunately many features of it are pretty broken at this point and the author even removed it from the Firefox addon page.