"Recently, Mozilla started offering a new addon. called MAFIAAfire, in the Firefox Addons site. If you are using MAFIAAfire when you try to visit one of the seized domains, you’ll be redirected to the new address for that website, if they have created one.
Note: MAFIAA means Music and Film Industry Association of America
Naturally, Homeland Security didn’t like that and sent Mozilla a take-down notice for the new addon. Mozilla’s written response to the request was a classic “Why do we need to?”, in the form of 11 piercing questions that will probably never be answered."