From Mozilla.org: (via Neowin)
“Gecko 1.9.3 Alpha 1 introduces several new features which can be tested by using this Mozilla Developer Preview. Many of these features are still in development, and while they will likely appear in some future version of Mozilla Firefox, some may be in earlier versions than others.
- Support for CSS Transitions. This support is not quite complete: support for animation of transforms and gradients has not yet been implemented;
- Support for SMIL Animation in SVG. Support for animating some SVG attributes is still under development and the animateMotion element isn’t supported yet;
- Support for WebGL, which is disabled by default but can be enabled by changing a preference;
- Support for the getClientRects and getBoundingClientRect methods on Range objects. See bug 396392 for details;
- Support for the setCapture and releaseCapture methods on DOM elements
- Support for the HTML5 History.pushState() and History.replaceState() methods and the popstate event;
- Support for the -moz-image-rect() value for background-image.
It also contains several other significant changes:
On Mac OS X, we render text using Core Text rather than ATSUI.
We rewrote major parts of the code for handling scrolling.
We made various architectural changes to improve Web page performance.”
Finally?
