Mozilla firefox 18 final is now available for download.
what’s new in this firefox 18?
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
Support for new DOM property window.devicePixelRatio
Improvement in startup time through smart handling of signed extension certificates
Support for W3C touch events implemented, taking the place of MozTouch events
Disable insecure content loading on HTTPS pages
Improved responsiveness for users on proxies