firefox

A fourth browser now plays video with no plug-ins. But codec wars continue: It uses Ogg Theora, like Firefox and Chrome but not Safari.

Mozilla programmers expect the new Firefox will nudge more people to upgrade to newer version of the open-source browser. Also in: a high-priority crash fix.

The newest versions of Internet Explorer, Firefox, and other browsers all protect against phishing and malware attacks, and most also let you browse anonymously, though they implement these features in very different ways.