Why does Firefox prompt for Domain (AD) Authentication? or How to get Firefox to automatically login to web sites with Domain Credentials (Sharepoint for example)?

Hey all,

I am sure you have been annoyed by the fact that when you use Firefox, the sites that require Domain credentials can popup and ask you to login. Sites like Sharepoint can ask you to log in over and over and over and over again. And then just when you are about as annoyed as you can be with typing your Domain user name and password, it prompts you some more.

For those of you who know, I work for LANDesk and we have server software and our Web Console uses NTLM authentication or Active Directory Domain credentials. You can log into the LDMS Web Console using Firefox using this method.

Well, this is really easy to make this “authentication prompt” go away. A quick search in your favorite search engine will resolve this (on a Windows box at least).

I found this site rather quickly:
http://www.1stbyte.com/2008/03/15/automatic-windows-authentication-with-firefox-networkautomatic-ntlm-authtrusted-uris/

Step 1 – Gather the lists of Sites that require domain authentication

1. Determine all the sites you go to at work that require domain or active directory credentials and put them in a text file.
   

   http://CompanyName-Sharepoint
   http://CompanyName-HelpDesk
   http://InternalServer1
   http://InternalServer2
   http://InternalServer3
   http://LDMSCore

2. Now format them like this:
   

   CompanyName-Sharepoint, CompanyName-HelpDesk, InternalServer1, InternalServer2, InternalServer3, LDMSCore

   Don’t worry if you don’t get them all, you can add new sites at any time.

   Note: Save this text file as you may want to do this again for someone else or you may want to do it again yourself computer gets rebuilt/upgraded.

Step 2 – Configure Firefox to Automatically Authenticate to these sites

1. Open Firefox.
2. Enter the following for the URL:
   about:config

3. When warned to be careful, click the “I’ll be careful, I promise” button.
4. In the Filter field, enter this value: network.automatic-ntlm-auth.trusted-uris
   Note: If the value is not there, you can add it as a new string.

5. Right click on the value and choose Modify.
6. Enter your servers as we formatted them above:
   

   CompanyName-Sharepoint, CompanyName-HelpDesk, InternalServer1, InternalServer2, InternalServer3, LDMSCore

7. Click Ok.
8. You shouldn’t have to close and re-open firefox but some poeple like to do this anyway.

You should now be able to browse your sites without having to enter credentials.