Firefox 15 patches 31 security flaws

Mozilla has published Firefox 15, the new browser release plugs 31 security vulnerabilities, including 23 that are rated as "critical" - so you better update asap. You can go to the "About Firefox" dialogue in the browser's "Help" menu to start updating or download it manually over here .

The update also promises significant performance enhancements, Mozilla claims they've finally plugged the main cause of memory leaks in Firefox add-ons, and touts enhanced 3D gaming performance thanks to native support for compressed textures in WebGL.

Last but not least, Firefox 15 addresses complaints about Mozilla's rapid release cycle by introducing a silent update model, similar to Google's Chrome browser.
What's New:
NEW: Silent, background updates
NEW: Support for SPDY networking protocol v3
NEW: WebGL enhancements, including compressed textures for better performance
NEW: Localization in Maithili (see all available locales)
CHANGED: Optimized memory usage for add-ons
DEVELOPER: JavaScript debugger integrated into developer tools
DEVELOPER: New layout view added to Inspector
DEVELOPER: High precision event timer implemented
DEVELOPER: The CSS word-break property has been implemented.
DEVELOPER: New responsive design tool allows web developers to switch between desktop and mobile views of sites
HTML5: Native support for the Opus audio codec added
HTML5: The
HTML5: The element now supports the media attribute
FIXED: Focus rings keep growing when repeatedly tabbing through elements (720987)
A new version of Firefox for Android tablets was also released, you can find it in the Google Play store. Mozilla says the new version offers quicker startups, faster page load times, better web app performance and quicker panning/zoomin.