The Mozilla Project has released
version 1.0.4 of Firefox,
the open source web browser that is rapidly gaining on
Internet Explorer. Firefox supports HTML, XHTML, CSS, and XSLT.
MathML and SVG aren't supported out of the box, but can be added.
1.0.4 is a security update
that is strongly recommended for all users. They've also released
version 1.7.8 of the integrated Mozilla suite with the same fixes.