What browsers are supported

I am looking for a list of browsers that the unity webplayer supports.

I can find OS and browser here: http://unity3d.com/webplayer/

But I need to know what versions as well. E.g: Is IE6 supported?

That's the only information you get when clicking on

(Need to download the web player for another platform?):

* Download for Windows (Internet Explorer, Firefox, Safari, Chrome, Opera, Mozilla, Netscape)
* Download for Mac OS X Universal Binary (Safari, Firefox, Mozilla, Netscape, Camino)
* Download for Mac OS X, only PowerPC (Safari, Firefox, Mozilla, Netscape, Camino)
* Download for Mac OS X, only Intel (Safari, Firefox, Mozilla, Netscape, Camino)