Steps to create a simple Firefox extension in 10 mins

*Need enable proxy to install packages for users from China
 
Windows:
Run Command prompt as administrator
npm install grunt-cli bower yo jpm generator-firefox-extension -g
npm install
bower install
mkdir myextension
cd myextension
yo firefox-extension myextension
copy myextension/app folder to upper folder (it's a bug)
grunt run
 
Export xpi:
grunt build
rename dist to dist.xpi and then drag to Firefox and install
 
Mac:
sudo npm install grunt-cli bower yo generator-firefox-extension -g
npm install
bower install
mkdir myextension
cd myextension
yo firefox-extension myextension
grunt run
 
Export xpi:
grunt build