Alright this is the most awesome thing I have seen all week! You know you love Mario, you couldn’t love that little chubby plummer? Now you can have him running around your installation of Firefox. Yes, this theme is totally dedicated to Super Mario Bros 3!
+ New Working Link (from Download.com) – You’ll need to download it, and then go to Tools > Addons and drag and drop the “super_mario_bros_3-2.0-fx.jar” into that addons pop up window.