When installed my lovely distro openSUSE 11.4 , i was bad, because firefox 4 has bad font smoothing. I corrected this problem and post in my Subpixel repo.
Index of /repositories/home:/muzlocker:/firefox/openSUSE_11.4

Too i create repository with ubuntu subpixel patches :
Index of /repositories/home:/muzlocker/openSUSE_11.4
Index of /repositories/home:/muzlocker/openSUSE_11.3

Now , my font smoothing very good for me