Additional mathematics fonts for Mozilla
Firefox require an additional mathematics fonts package.
Mathematical Markup Language (MathML) is an application of XML for describing mathematical notations and capturing both its structure and content.
The fonts that should be installed for the best MathML rendering depend on which version of Mozilla is being used. Please read section Mozilla 1.8 (for Firefox 2.0) or Mozilla 1.9 (for Firefox 3.0) as appropriate.
Mozilla 1.9 (including Firefox 3.0)
Download and install the STIX Beta fonts
for best MathML rendering.
The link above provides a Zip archive containing the font files (which have the ".otf" extension).
The fonts may be installed by extracting the files from the Zip archive, then following
instructions for Microsoft Windows
or copying the files to a "~/Library/Fonts" folder on Mac OS X, or to a "~/.fonts/" directory (which may need to be created)
on Unix/Linux systems. Alternatively, follow dafont's "How to install a font"
Mozilla 1.8 (including Firefox 2.0)
Use the font installers to install the fonts on your system if you do not have them already.