“It’s a-me! Mario!”, right here, in your back button.

Mushroom Kingdom, by Matt Coxwell, brings the joyful colors of Mario’s video game adventures to your favorite browser.

The customization is limited to the main window and the toolbar background starts tiling just above 1000 pixels wide, but who cares? Mario and Luigi go to sleep if there’s nowhere to go back or forward!

This is the best to happen to Mario since Super Mario Galaxy. Or maybe Kart Wii.

Anyway I suggest all Mario fans unite and push Matt to theme uninterruptedly until his work is complete.

Available at Mozilla Add-ons with account required at this time.

Via Firefox Facts.