Firefox 3.6.3 patches Pwn2Own security flaw

Mozilla has released a quick Firefox update to patch the security vulnerability discovered and exploited last week during the Pwn2Own competition that challenges hackers to break the latest versions of the most popular web browsers.

Internet Explorer, Safari, and Firefox got hacked during the contest and the vulnerabilities disclosed to each browser maker.

The flaw only affects Firefox 3.6, but Mozilla plans to patch Firefox 3.5 in a forthcoming update to be safe. Firefox 3.0.x saw its last update just earlier this week, after an extension to Mozilla’s policy of supporting previous versions up to six months after the latest version release.

To get the update, select Check for Updates… in the Help menu and follow the on-screen instructions or wait to be prompted for the update within the next couple of days.