Right but in my non-scientific test I found uBlock to work better so I don’t use the Brave blocker. My prediction is that Brave will eventually say that it’s too costly to maintain v2 in their fork and that people should just use the Brave blocker.

Interesting. What are you noticing? I might run ublock on top as well if it's worth it.

Brave has built-in functionality that can replace uBO, but it doesn't replace all of the other Manifestv2-only extensions that are not necessarily adblockers. For example https://libredirect.github.io/faq.html#chrome_web_store

> We can't publish LibRedirect to the Chrome Web Store as it requires Manifest v3, which removed essential features that LibRedirect needs.

uBlock Origin is just the tip of the iceberg since it's the most popular one, there is an entire ecosystem of Mv2 extensions that can never be replaced by Brave's built in functionality

My parent poster and I mentioned specifically ublock origin features

I’m wondering why Chrome forks don’t just maintain a shared patch enabling MV2.

That said, uBlock Origin works best on Firefox: https://github.com/gorhill/uBlock/wiki/uBlock-Origin-works-b...

Does the default Brave ad blocker block Youtube ads?

Yes.

You can have all the usual ublock origin behaviour custom filter lists and all that, about:adblock