Miss those days of Castlevania and Kung Fu master? Sick and tired of late nights with GTA4 or Halo 3? Then spark an instance of Firefox, download FireNes, and prepare for a walk down memory lane.

From Allanjosephbatac:

FireNex is a new Firefox plugin you can use to play all those NES game goodies without downloading a NES emulator or those game packages. You simply download FireNes, restart your Firefox, open up FireNes over at Tools >> FireNes. That opens up over 100 NES games. Games you played when you were a kid (at least for me), now right on your Firefox sidebar.

Double-click a game you want and it opens up automatically without even downloading anything after!

To save you time on the controls, it’s the X & Z. You can view the controls by right-clicking any game on the sidebar.

Image via ajb.