That looks like a problem with a missing or corrupted font that Firefox replaces with a different font. You can do a font test to see if you can identify corrupted font(s). *http://browserspy.dk/fonts-flash.php?detail=1 You can try different default fonts and disable website fonts as a test. *Tools > Options > Content : Fonts & Colors > Advanced *[ ] "Allow pages to choose their own fonts, instead of my selections above" You can use this extension to see which fonts are used for selected text. *fontinfo: https://addons.mozilla.org/firefox/addon/fontinfo/

Thank you. The Georgia font was corrupted