User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:18.104.22.168) Gecko/20060111 Firefox/22.214.171.124 When auth on corporative proxy, running on Active directory and MS Proxy 2.0 Firefox no password prompt any more and I get auth error 407 from proxy. No password promt - no password for proxy - no auth In Firefox 1.0.7 no problems. Bugs begins from version 1.5 Reproducible: Always Steps to Reproduce: 1. NTLM auth on MS Proxy 2.0
Maybe related to Core bug 275679?
(In reply to comment #2) > Maybe related to Core bug 275679? Maybe. Core v.1.8.* have big troubles with NTLM auth? How to solve a problem?
*** This bug has been marked as a duplicate of 275679 ***