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some text shown in the image is difficult to read some text shown in the image is difficult to read

This is Firefox 22 on Windows 8 pro.

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Probably this issue: - I'll write this up as an answer if it ends up disabled hardware acceleration or removing the update works for you. – ernie Aug 9 '13 at 17:06
Thanks @ernie. I've disabled it and it works. – laggingreflex Aug 9 '13 at 17:17
up vote 2 down vote accepted

Appears to be this known issue:

Quoting from the answers there:

Try to disable hardware acceleration in Firefox.

Try to set the pref to false or if this didn't help disable Direct2D by setting the gfx.direct2d.disabled pref to true on the about:config page and leave hardware acceleration otherwise enabled.


The actual problem (atleast for me and a few others) is due to a windows update kb2670838. This update applies performance patches to Direct2D, 3D, and Write related components. The reason disabling usage of Direct2D or hardware acceleration fixes it is because its simply not using those Direct___ functions anymore.

In the Update history, 2670838 is listed as: Platform update for Microsoft Windows (KB2670838) In the Installed updates, 2670838 is listed as: Update for Microsoft Windows (KB2670838)

Again, uninstalling this update solved the problem for me and a few others, hopefully it will solve your problems correctly as well.

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