Firefox Aurora 27.0a2 is now available for download. Whats new in this release? Windows 8 optimized Aurora is ready for use. You can now run more than one service at a time with Firefox SocialAPI, allowing you to receive notifications, chat and more from multiple integrated services. Changes in this version Added support for SPDY 3.1 protocol and deprecated SPDY 2. Other changes Experimental support for CSS sticky positioning. Ability to reset style sheets using. SVG: Added support for transform-origin. You can now choose to deobfuscate javascript in the debugger. Added support for scrolled fieldsets. Implemented allow-popups directive for iframe