Fastest way to debug Firefox addons during development

Question

Debugging a Firefox addon is a slow process: (1) edit source code in a JS editor (2) package into XPI using a build script (3) drag into Firefox to install (4) restart Firef

Answer 1

Came here via google - FF nightly 31 has new tools for debugging add ons. Its a god send. Details here: https://blog.mozilla.org/addons/2014/04/08/add-on-debugger-now-in-firefox-nightly/