Firefox 3.5 includes great new features and improvements for private browsing, geo-location, multi-tabbed browsing, and more. PC World's Nick Mediati takes a look. To comment on this article and other PCWorld content, visit our Facebook page or our Twitter feed. Related: Web Apps Browsers Utility Software Security Consumer Advice PCs Security You Might Like Shop Tech Products at Amazon Notice to our Readers We're now using social media to take your comments and feedback. Learn more about this here.