Webware - Although it's not intended for public consumption, a new build of Firefox 3 Alpha 5 (code name Gran Paradiso) is available for download from Mozilla. In this release add-ons created for Firefox 2 may not work. For end users, Firefox 2 remains the latest public version. The final public release for Firefox 3 is not expected until the fall of 2007. Intended for developers and beta testers, Firefox 3 Alpha 5 features a new rendering engine. The Gekko 1.9 rendering engine will introduce some changes. For example, Firefox 3 will no longer support Windows 95, 98, and Me, and for the Mac OS X, versions 10.2 and earlier will not longer be supported. There will also be numerous changes made to the Document Object Model (DOM) in Gekko 1.9, which will affect developers more than end users. Also, there will be changes in the way Firefox renders frames within its display and the way object tags are handled, as well as changes in event threading.