1031913 - Update 30 Broke Our Office 365 ADFS Authentication on Mac

Status: RESOLVED DUPLICATE of bug 1023748

(Firefox :: Untriaged, defect)

Description

[bhunter]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.97 Safari/537.36

Steps to reproduce:

I tested 5 different macs running a mix of Mountain Lion and Mavericks with Firefox release 30.


Actual results:

No machine was able to get the authentication prompt and displayed the following error:
"401 - Unauthorized: Access is denied due to invalid credentials."


Expected results:

I was able to successfully get a prompt in release 29 and login without issue.  Quitting Firefox and updating to release 30 shows the new broken behaviour.

Comment 1

[:Gijs (he/him)]

See:

https://developer.mozilla.org/en-US/Firefox/Releases/30/Site_Compatibility#Security


How to enable NTLMv1: type about:config in the location bar, click the "I'll be careful" button, find network.negotiate-auth.allow-insecure-ntlm-v1, double-click on it to change the value to true.


In Firefox 31, you should be able to use NTLM against SSL-secured websites (which the URL you posted in the URL field isn't), although support for NTLM on Linux and Mac has been deprecated.