Note: Firefox 3 (Gran Paradiso) alpha 1 is being made available for testing purposes only.From Mozilla:Gran Paradiso Alpha 1 is an early developer milestone for the next major version of Firefox that is being built on top of the next generation of Mozilla's layout engine, Gecko 1.9. Gran Paradiso Alpha 1 is being made available for testing purposes only, and is intended for web application developers and our testing community. Current users of Mozilla Firefox should not use Gran Paradiso Alpha 1.
Changes in this Development MilestoneGecko 1.9 Alpha 1 introduces several new features which can be tested by using Gran Paradiso Alpha 1:
* Cairo is now being used as the default graphics library, affecting all graphic and text rendering
* Cocoa Widgets are now used in OS X builds
* An updated threading model
* Changes to how DOM events are dispatched (see bug 234455)
* Changes to how <object> elements are loaded (see bug 1156)
* Changes to how web pages are painted
* New SVG elements and filters, and improved SVG specification compliance
Some of the changes in Gecko 1.9 Alpha 1 will affect the web and platform compatibility of Gran Paradiso Alpha 1:
* Windows 95, Windows 98 and Windows ME are no longer supported platforms
* OS X 10.2 is no longer supported, and OS X 10.3.9 or higher is recommended
* Moving DOM nodes between documents now requires a call to importNode or adoptNode as per the DOM specification.