That usually happens only if you have a cookie problem for this site. Do you get the same problem with a new profile http://support.mozilla.com/en-US/kb/Managing+profiles ?
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:220.127.116.11pre) Gecko/20110120 Namoroka/3.6.14pre Works for me.
OK, I've checked and the link works fine with a new profile, or with the same version of Firefox on a different computer. So I tried deleting the 2 cookies I had for that site in the original profile and the problem is gone. Thanks, guys. I'd never imagined that a bad cookie could have such a specific effect, which was why I thought there was a bug in Firefox. Can you tell me why only the one link was affected?
It's an bug in the page but it's no unique case. The page should remove/rewrite their own cookie if it doesn't like the content. but it sends you instead in a redirection loop.