Firefox 3.1 Beta 3 is based on the Gecko 1.9.1 rendering platform,
which has been under development for the past 9 months. Firefox 3.1
is an incremental release on the previous version with significant
changes to improve web compatibility, performance, and ease of use:
* Improved the new Private Browsing Mode.
* Improvements to web worker thread support.
* Improved performance and stability with the new TraceMonkey
JavaScript engine.
* New native JSON support.
* Improvements to the Gecko layout engine, including speculative parsing
for faster content rendering.
* Support for new web technologies such as the <video> and <audio> elements,
the W3C Geolocation API, JavaScript query selectors, CSS 2.1 and 3 properties,
SVG transforms and offline applications.
Thanks to: beat@, nox@, gahr@, Florian Smeets,
fef9b9d2e0