illeism writes to note that, a mere six weeks after the launch of Firefox 2, Firefox 3 is now available in alpha. CNet reports that it is currently recommended only for software developers and testers. The big change is the upgraded Gecko rendering engine (the UI is unchanged from version 2). From the CNet article: "Firefox 3 will include some significant changes. It uses version 1.9 of the Gecko rendering engine — which itself hasn't been released yet but which includes the Cairo graphics layer. Gecko 1.9 has been in development since before the release of Firefox 2, and it provides vector-based rendering on all platforms. As the Gecko 1.9 road map explains, Cairo will 'bring modern, hardware-accelerated 2D-graphics capabilities to the whole of the Web without requiring proprietary plug-ins or rendering obsolete the broad and rich set of Web-authoring techniques developed over the past decade.'"