1.Download Greasemonkey addon for Mozilla Firefox from https://addons.mozilla.org/en-US/firefox/addon/greasemonkey/
2.Install it
3.Restart Mozilla Firefox
4.Install InviteThemAll script from http://userscripts.org/scripts/show/89653
5.Restart Mozilla
Now, when you will at invite friends section it will appear a new line.Don`t change anything and click "Select", wait for loading and its all done!
