For security reasons, the automatic authentication on the Intranet, ie on the own domain on the own Windows servers, does not happen automatically in Firefox, in contrast to other Web browsers.
This NTLM and Kerberos authentication must first be activated in Firefox.
The example for the domain "test.local" requires the following steps:
- In Firefox, enter "about: config" (without spaces) in the address bar.
- Search for the following four parameters and enter the specified values, instead of "test.local" your domain.
|network.negotiate-auth.allow-non-fqdn||true (most important entry)|