As if Firefox 3.5 wasn't enough for fast browsing, SmarterFox makes browsing even faster. Originally created for Wikipedia, it adds a sidebar of related articles for a Wikipedia page. Another feature is a pop-up bubble that appears when you highlight text on a Web page. Clicking on the bubble will take you to a related Wiki entry or Google search term related to the highlighted text. Smarterfox also enhances the Awesome bar, so that Google search results automatically appear as you type. Another feature is qLauncher (left), that lets you add shortcuts to your favorite sites.
