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.

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!

×