why dont u just download the one latest nightlys because they will be whats released in 13min or so...heres the link
http://64.12.168.21/pub/mozilla.org/firefox/night...004-11-08-06-0.11/
see heres my useragent:
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041108 Firefox/1.0 (ax)