firefox nad mathml

[Eric Tanguy]

I'm trying to see mathml in firefox and firefox wrote that i have to
install Symbol font to display properly mathml. How to do that ? Why
this font is not included with FC3 or at least firefox ?
Best regards

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Eric Tanguy | Nantes, France 
<eric.tanguy at univ-nantes.fr>
Key : A4B8368F | Key Server : subkeys.pgp.net 
Fedora Core release 3 (Heidelberg) sur athlon kernel 2.6.11-1.14_FC3