This seems like a question that would have been answered a million times over but apparently I'm not searching for the right terms; does anyone know why Helvetica type 9px and smaller SOMETIMES isn't anti-aliased in FF 2 for mac? I say sometimes because I've been to websites using said browser at those font sizes and they seem to anti-alias just fine.
I appreciate the reply but what's really perplexing me is that sites like facebook.com antialias fonts regardless of my personal browser settings or font size whereas my own designs are obeying the browser settings and turning off antialiasing on fonts 10px or smaller.
What I want to know is, are they doing something to force FF to antialias and if so what is it?
> Is this due to an absence of a bitmap version of this font?
I can't confirm that, but I suspect that you're on the right track - your explanation certainly makes sense. :) There is no method I know of which could force Firefox to anti-alias text smaller than the defined minimum.