Fix Firefox 5+ font rendering in Windows
If you use Firefox 5, 6, 7, 8, or greater in Windows, without ClearType, you've probably noticed how abysmal the font rendering is.
However, there's an easy fix. In about:config, find the preference gfx.direct2d.disabled and toggle this to true. Restart and your fonts will now look as they used to, which is to say, not nearly as horrible.