Probably because Safari is IE6 of today. That's pretty much as far from "the best" as it gets.
Even as an user, if I want adblock, it will launch separate application, with separate dock icon. That's so un-Apple, as if they didn't want you to use it.
Even as an user, if I want adblock, it will launch separate application, with separate dock icon. That's so un-Apple, as if they didn't want you to use it.