Besides the speed improvements Firefox 18 actually received Retina display support. This comes after an embarrassingly 5 month period after Google Chrome was updated with such support. Finally however, Firefox advocates can use Firefox when it is looking its best on the 13 or 15-inch MacBook Pro running OS X 10.7 or above.
For those of you techies out there preliminary support for WebRTC was also included, which is essentially a framework for the Web that enables real time communications in the browser. As for the Android version of Firefox 18 it has received search suggestions to make it easier to find what you’re looking for on the web and security improvements.