Some font rendering issues can be caused by problems with the graphics hardware acceleration feature. Could you try disabling it?

You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).

Firefox > Preferences > Advanced

On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"

Are you also specifying local fonts as a bypass to downloading?

You can do a check for corrupted and duplicate fonts and other font issues:

• http://www.thexlab.com/faqs/multipleappsquit.html - Font Book 2.0 Help: Checking for damaged fonts
• http://www.creativetechs.com/iq/garbled_fonts_troubleshooting_guide.html

Thanks but neither of those options worked.

Thx

Can you provide a link to a page demonstrating the problem? I don't have a Mac to view it on, but perhaps someone else can take a look.