white raven - yes, i think it is a windows setting.  i changed it so i could see kanji, but i can't remember how.  i believe it was a preference under, but now i can't remember what search terms i used to find out how to do it...
ah! found it!

"firefox display kanji" fourth hit in google
http://www.hanzismatter.com/2005/03/howto-display-hanzi-and-kanji.html

i ended up installing the add-on from microsoft, iirc.