Thanks. I tried it, but it doesn't block youtube banners on the bottom of the videos. Adguard does. It also blocks all comments, including Hacker News comments by default??!?
I'm complaining about a bizarre default (also blocks porn by default), not that I don't know how to fix it. That being said, the lack of blocking youtube in-video banner advertisements make it unusable to me, which is a pity because the UI is pretty good.