(math related) fonts in www/firefox-2.0.0.14_1,1

[Joey Mingrone]

Hi,

I'm having some trouble getting firefox to display certain (math
related) fonts.

For example, the page for the Poisson distribution at Wikipedia
(http://en.wikipedia.org/wiki/Poisson_distribution) uses, what I
believe is, a lambba character (sentence with the pmf), but it shows
up like this for me: http://jrm.ath.cx/misc/firefox_math_fonts.png.
I've installed x11-fonts/mathfonts-4.1_5 and it seems to be working
well based on my results at http://www.w3.org/Math/testsuite/.  Is
there anything else I'm missing?

Thanks for any tips,

Joey Mingrone