Comment 44 for bug 499113

I'm not active in bugzilla community, so pardon me for dropping in.
I'd just like to point out the circumstances under which the bug occurs:

- *** 64-bit *** Windows Vista / 7
- ClearType set to ON

I didn't succeed in replicating the bug on 32-bit versions of Vista/7, even
with ClearType set to on, so I think it's a 64-bit problem. I haven't tested teh bug on XP/64-bit.

Green artifacts appear on text elements when opacity is set to less than 1
(.999 or less). Clearly visible on jQuery or similar JS fade in/out effects
that utilize fast changes to element opacity.

I'm also having issues with PNG rendering in Firefox 3.5.* when color
management is turned on. Setting "gfx.color_management.mode" to 0 fixes the
issue. This is also a bug that only occurs on 64-bit versions of Windows OS.

From my layman point of view, I suggest that something is generally wrong with text and image rendering on Firefox 3.* when using a 64-bit Windows Vista/7.