When I open the same web pages with Chrome and Firefox, for example
http://mathoverflow.net, math in Chrome looks significantly worse than in Firefox.
The "About MathJax" message is exactly the same in both browsers: MathJax v2.1, using TeX web fonts, Chrome v22.0.1229.94 (resp. Firefox v15.0.1) --- woff or otf fonts.
But: the fonts in Chrome look bolded, uneven, somewhat jagged, sometimes pretty hard to make out, generally pretty ugly I would say. The fonts in Firefox look thin, not bold, and nice, just what I always expect from MathJax.
I am on Windows 7. I do not have any local STIX or MathJax fonts installed. Chrome's fonts were fine until a few months ago. The change appeared when Chrome auto-updated to a new version. (Unfortunately, I don't remember which. Maybe v.21 but maybe several versions before that, like v.18).
I observed the same ugly web math fonts in MathJax using Safari for Windows 1.5 years ago but I figured it was a Safari or Safari on Windows issue. Maybe it is the WebKit browser issue?
Is anybody else aware of the issue and knows how to fix it?