French Press is an experimental Firefox add-on library that allows developers to write Firefox JS add-ons ("jetpacks") in CoffeeScript. It tries to make the process as seamless as possible; the goal is to have to edit ZERO JavaScript while writing your add-on, instead writing everything -- even your "main.js" file -- in CoffeeScript.
It's pretty hacky right now and I've only thus far used it in a very small add-on, but it does work. Patches are very welcome.
MIT-licensed; you can basically do whatever you want with French Press. Patches welcome though! See LICENSE.txt more.
Copyright (c) 2011 Matthew Riley MacPherson.