The ADAM help documentation describes how to setup ADAM to use the active directory authentication. As you would expect, this means that the user will have a single sign-on experience and no longer has to fill in his username and password. This works fine with Internet Explorer. But, with Firefox, you still get a login box where you have to specify your username and password.

If you don't want to get this login box, you have to modify the configuration of Firefox. You can do this as follows:

1. Open Firefox.
2. In the address bar, type: about:config
3. In the filter box, search for: network.automatic-ntlm-auth.trusted-uris
4. Double click on the item you just found.
5. Enter the URL of the website were ADAM is hosted. For example: "http://adam.mycompany.com". Note that this can be a comma separated list of URLs.
6. That's all.