Customize Firefox Address Bar Search
By default, when you type something into the address bar in Firefox it will use Google's "I'm feeling lucky" search to send you to the 'best' website. I never use this feature and (more importantly for me) my workplace blocks a certain parameter in this query so I wanted to change this behavior.
This is so easy to change it's almost trivial. Simply open the about:config page in Firefox and filter for "keyword.url". The one remaining preference will be the one you want to edit. Double click and replace the value with:
This will cause Firefox to perform a nice vanilla Google search.