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Microsoft Dynamics CRM 2011 Integrated Authentication with Firefox in Update Rollup 12

Symptoms
Mozilla Firefox users are prompted for credentials when attempting to log-in to Microsoft Dynamics CRM 2011 using Windows integrated authentication.
Cause
This behavior is by design, as Firefox rejects all SPNEGO login challenges (Kerberos, NTLM, or other authentication protocols). For more information regarding this behavior, please see the following article:

https://developer.mozilla.org/en-US/docs/Integrated_Authentication
Resolution
This issue can be resolved by altering the network.automatic-ntlm-auth.trusted-uris configuration property to include the Microsoft Dynamics CRM website.

  1. In Firefox, navigate to the following URL: "about:config".
  2. If a warning page appears with the message, "This might void your warranty!", click "I'll be careful, I promise!".
  3. Locate and double-click on the network.automatic-ntlm-auth.trusted-uris string property.
  4. In the "Enter String Value" box, enter the URL address used to access the Microsoft Dynamics CRM website (ex. http://crm). Please note that multiple websites can be separated in the string value by using a comma.
  5. Click Ok.
  6. Close and re-open Firefox.



More information
Cross browser compatibility was introduced to Microsoft Dynamics CRM 2011 in Update Rollup 12. Previous versions of Microsoft Dynamics CRM are not supported for cross browser access.
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.
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Article ID: 2786247 - Last Review: 01/03/2013 16:17:00 - Revision: 3.0

Microsoft Dynamics CRM 2011

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