I've been struggling with this (well, similar - in my case it's fine on a Xubuntu laptop and a Win XP 32-bit laptop - but horrible on my Windows 7 x64 desktop - all Firefox)
It does seem to be a Firefox issue - the best results I've got so far is by going to about:config in the address bar, then finding the entry
Code:
gfx.downloadable_fonts.enabled true
and toggling it to
Code:
gfx.downloadable_fonts.enabled false
I then re-enabled cleartype
FWIW the desktop is a Core i5 with integrated Intel graphics - depending on your H/W you might want to play with all the gfx settings and see if anything works for you
http://support.mozilla.org/en-US/questions/791489
Bookmarks