Setting modified styles for FF on windows than in FF on Mac

So we all know that windows renders text a little differently, that in, it renders text a bit bigger then its superior counterpart, the Mac.

I’ve run into a problem with an inline unordered list, because the text is larger it throws my padding off and makes everything look ugly.

Is there a way to set Windows FF specific styles that are slightly different than FF for Mac?

Is there something similar to the * html workaround for stupid IE on Windows?