I have custom-made web fonts used on my site. To style my rendering output, I used the following code:
//-webkit-text
Case: Light text with jaggy web font on dark background Firefox (v35)/Windows
Example: Google Web Font Ruda
Surprising solution -
adding following property to the applied selectors:
selector {
text-shadow: 0 0 0;
}
Actually, result is the same just with text-shadow: 0 0;, but I like to explicitly set blur-radius.
It's not an universal solution, but might help in some cases. Moreover I haven't experienced (also not thoroughly tested) negative performance impacts of this solution so far.