Rated 4 out of 5 stars
So far, works fine. Particularly useful for blocking flash cookies ;) I'd give it 5 stars, however its size (over 200kb) and not being able to have the choice to enable/unable specific pages rather than global block makes it a 4 star app. Nice one, regardless!
Edit - A change in the icon to let you know when flash is enable/disable would also be nice =)