Mozilla patches 10 security bugs in Firefox browser.

Mozilla yesterday patched 10 bugs in Firefox, half of them critical, in the browser's rendering and JavaScript engines, media and video libraries, and other components.
Firefox 3.5.6, the browser's first security update since late October , fixed five flaws rated critical by Mozilla, one tagged as high, three pegged as moderate, and one labeled as a low threat. The five critical vulnerabilities were located in the rendering and JavaScript engines, and in the "liboggplay" and "libtheora" media and video libraries.

Source -
Mozilla patches 10 security bugs in Firefox browser | Security Central - InfoWorld