Today’s Firefox addon of the day is called FireNes, and it brings an army of NES games straight to your browser. Though the page requires a translator (WARNING: Español ahead), the installation method should be pretty obvious.

I would write more about how amazing a duo Firefox and the NES is, but I have to kill more Foot Soldiers. April is waiting!

UPDATE: After a user tipped us off, we have discovered that this addon is actually illegally using content hosted on another site. We tested this addon and managed to find the one game that works alright,  so we ran with it. Bah. You can still play games online, however, as the real source does the same deal for free. I am playing Super Mario 3 right now.