Configuring Mozilla Firefox

  1. Start Firefox and type about:config in the URL address bar.
    A list of configuration parameters appears.
  2. Using the search bar, edit the following parameters:
    1. network.negotiate-auth.delegation-uris,
    2. network.negotiate-auth.trusted-uris.

    For both of these parameters, enter the value https://firewall_serial_number.dns_domain (e.g.,

  3. Close the browser to confirm the configuration.