Mozilla v1.1. - Mozilla is a scriptable, open-source web browser, designed for standards compliance, performance and portability. [release notes] [AppleScript Info]

The update also adds Quartz Extreme optimization for those running machines that support it, as well as MathML support, better Web standards support, and a host of other enhancements.[Mac Net Journal]

I have to check the MathML support in this new version. The previous versions have been rather unreliable in rendering even simple math with MathML.