Mozilla ships faster Firefox (June 30, 2009): Mozilla released the latest version of Firefox, which offers several performance enhancements, particularly for Web developers. Though not the fastest browser, Firefox 3.5 is more competitive against Chrome and Safari in this area. Firefox 3.5 features location-aware browsing so it's easier for users to find nearby retailers or restaurants. This version also supports private browsing, which was already available in Chrome, Safari and Internet Explorer. Mozilla says more than 300 million people around the world use Firefox.