Mozilla Firefox 18 beta is now available for download and testing.What’s new in this beta?
Support for Retina Display on OS X 10.7 and up
Preliminary support for WebRTC
Experience better image quality with our new HTML scaling algorithm
Performance improvements around tab switching
CSS3 Flexbox implemented
Support for new DOM property window.devicePixelRatio
Support for (@)supports added
Improvement in startup time through smart handling of signed extension certificates
Support for W3C touch events impemented, taking the place of MozTouch events
IonMonkey -new JavaScript JIT compiler
FIXED
Disable insecure content loading on HTTPS pages
Improved responsiveness for users on proxies
