Firefox and integrated windows authentication

Do you have an Intranet or a similar web site that requires the use of Integrated Windows Authentication? If so the default Firefox browser settings will always prompt you for a username and password first before accessing a site using Integrated Window Authentication.
Fortunately Firefox has the slick ability to easily modify it’s configuration to use Integrated Windows Authentication.

How to configure Firefox

1. Open Firefox
2. In the address bar type: about:config
   
3. Firefox3.x and later requires you to agree that you will proceed with caution.
4. After the config page loads, in the filter box type: network.automatic
5. Modify network.automatic-ntlm-auth.trusted-uris by double clicking the row and enter http://www.replacewithyoursite.com
6. Multiple sites can be added by comma delimiting them like  
   http://www.replacewithyoursite.com,
   http://www.replacewithyourintranetsite.com