Although they are listed for IE7 these tweaks work with IE8 too.Firefox is recommended for Linux platforms.
As far as I can tell everything on this site works more or less correctly with IE8 and Firefox.
I have no further intention to validate on anything but the latest versions of Firefox and IE (maybe). My experience with other browsers is that they are just not up to a reasonable operating standard, are minority interest browsers, or are so old they have security issues.
No IE above IE8 has been tested as they use Microsoft's stupid sub-pixel rendering which cannot be disabled (remember the early versions of Safari). You might know it as clear type. I, like a great many others, call it smear type.
This site does not use JavaTM, and will never use this poor system.