I think Apple have the right idea with app review on browser extensions for Safari.
/s
Chrome used to. You used to be able to just download the source code of an extension, point Chrome at it, and done you are.
Well, you still can. But Chrome will CONSTANTLY nag you about it and try to forget you added that extension using source, like it's some vile crime.
They removed it because of "security", which is a hilarious reason because it just made everything so much worse.
Would be a real shame if some software would block your ads because you didn't want to pay, wouldn't it?
You'd think if they were serious about privacy their privacy policy would just say "we spy on nothing and collect nothing and share with no one". 1password effectively has that privacy policy, lastpass does not.