"A generator is basically a plugin that can be run with the yo command to scaffold complete projects or useful parts."
Visit the site.
http://yeoman.ioInstall yeoman with npm.
npm install -g yoI tried using the official angularfire yeoman generator. I felt it installed too much content for a simple app. I decided to do one myself. This generator installs basic modules to work with angularfire, and a simple setup using angular ui-router. From this point you can modify it to suit your needs and deploy your apps and websites much faster and maybe lighter and in more complex ways.
To install generator-angularfire-fab from npm, run:
npm install -g generator-angularfire-fabFinally, initiate the generator:
yo angularfire-fabMIT