Configuring Firefox to allow silent authentication

By default, Firefox supports prompted NTLM authentication. To enable silent NTLM authentication, you first need to configure the browser to trust sites.

To enable silent NTLM authentication in Firefox:

  1. Open Firefox.
  2. Type about:config as the target URL.
  3. Type ntlm in the Filter field.
  4. Select and right click network.automatic-ntlm-auth.trusted-uris and select Modify.
  5. Type a comma-separated list of partner URLs or domain names as string values, then click OK. For example, type http://fire.arcade.com,https://fire.arcade.com, then click OK.

    Note:   For security reasons, you should be as restrictive as possible in specifying this list.

Although the Mozilla Firefox web browser supports negotiated (SPNEGO) authentication, this support is not enabled by default. To enable silent SPNEGO authentication for the Firefox browser, you first need to configure the browser to trust sites.

To enable silent SPNEGO authentication in Firefox:

  1. Open Firefox.
  2. Type about:config as the target URL.
  3. Type neg in the Filter field.
  4. Select and right click network.negotiate-auth.delegation-uris and select Modify. Enter a comma-separated list of partner URLs or domain names as string values, then click OK. For example, type http://fire.arcade.com,https://fire.arcade.com, then click OK.

    Note:   For security reasons, you should be as restrictive as possible in specifying the list of trusted sites.

  5. Repeat for network.negotiate-auth.trusted-uris.