The problem is related to https://developer.mozilla.org/en- US/Firefox/Releases/30/Site_Compatibility#Security) / NTLMv1 auth has been disabled, NTLM support on non-Windows platforms is now deprecated.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1330493 Title: HTTP Error "401 - Unauthorized: Access is denied due to invalid credentials." is reported when connecting to any IIS Server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1330493/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs