Consider that I built it this night for http://lauzhack.com/, so it's not intended to be a fully-featured solution to the problem.
The main issue I wanted to address is the fact that such a blocker must be widely installed to be useful. Therefore, the Facebook message is intended to prod current users of the extensions to ask that their friends install it as well.
The main issue I wanted to address is the fact that such a blocker must be widely installed to be useful. Therefore, the Facebook message is intended to prod current users of the extensions to ask that their friends install it as well.