LinuxMint & Firefox: Remove DuckDuckGo

Since LinuxMint 12, DuckDuckGo has been the search engine of choice of the distro.  Removing it as the search tools for the Firefox URL location bar can be a bit tricky since this option is not under the Firefox Edit > Preference.

Instead you have to:

1. Type "about:config" in the Firefox URL bar.
2. Click the button, [ I'll be careful, I promise! ]
3. Search for "keyword.URL", should only return 1 result.
4. Right-click the row and select modify.
5. Change the value to "http://www.google.com/search?q=" to use Google as your URL search bar.