Firefox does already have some tracker blocking built in, though it would be fantastic to import arbitrary filter lists.

Chrome & Safari are operated by advertising/surveillance companies, so no dice there.

This is the equivalent of

"Lawmakers should legally set rents to $0, so we can all live for free"

This is what brave does. It's implement without needing an extension, so Manifest V2/V3 etc doesn't matter one bit.

So, Brave.