After a successful beta period, Firefox 18 is now available for download to all users of Mozilla's Web browser. The latest iteration includes a number of enhancements that should make HTML5 performance much better across both desktop and mobile.
The other major additions include support for retina displays on Macs with OS X 10.7 and up, and preliminary support for WebRTC. For those unfamiliar, WebRTC is essentially the HTML5 equivalent of Skype or other video chat services. Mozilla and Google have invested heavily in the technology, and both Firefox and Chrome are beginning to support the API.