Firefox has a lot of really cool features, including some great extensions that add covenient functionality to the browser. Today, I went in search of a Wikipedia extension so that I could search the encyclopedia direct from Firefox's integrated search box like I do Google, Merriam-Webster, IMDB.com, and other sites. In my search, I discovered a pretty nifty feature built right into Firefox. To search Wikipedia in Firefox, all you need to do is type wp [your search term] in the URL address field. Now that is cool!