Disabling Firefox's "Awesomebar" Permanently

In the address bar type "about:config" and press enter. Ignore the warranty warning by pressing "I'll be careful, I promise". Search for the "browser.urlbar.maxRichResults" entry, double click it and change the default number from 12 to -1. Goto "file", press "exit" and restart Firefox. The awesomebar should now be disabled.