Firefox asks for user name and password on internal sites

Follow the instructions below and Firefox will not splash its password prompt for internal sites.

  • Firefox version < 13
    • Open Firefox
    • In the Address bar type about:config
    • In the filter field type ntlm
    • Double click network.automatic-ntlm-auth.trusted-uris
    • In the prompt that comes up, type a list of server you want to allow, separated by a comma and a space. For example, if you wanted to allow http://company1_server and http://company2_server, you would type in company1_server, company2_server
    • Click OK
    • In the filter field type negotiate-auth
    • Double click network.negotiate-auth.trusted-uris
    • Set the same value as above
    • Click OK
    • Restart Firefox.

  • Firefox version >= 13
    • Open Firefox
    • In the Address bar type about:config
    • In the search/filter field type ntlm
    • Set network.automatic-ntlm-auth.trusted-uris to
    • Set network.automatic-ntlm-auth.allow-non-fqdn to true by right-clicking and selecting "toggle"
    • In the search/filter field type negotiate
    • Set network.negotiate-auth.trusted-uris to
    • Set network.negotiate-auth.allow-non-fqdn to true by right-clicking and selecting "toggle"
    • Click OK if present
    • Restart Firefox.

  • Please leave a comment or g +1 or share on f or share on t below if this post helped you. This will keep me motivating.


                Anonymous said...


                Thank You

                ankit said...

                Above comment made my day...wohoo!!

                James said...

                Thank you!!!! :)

                Anonymous said...

                Thank you so much!!!!!! I was convinced Firefox didn't allow pass-thru authentication and would be stuck with IE :-(...but you proved me wrong!

                Question though, what are network.negotiate-auth.trusted-uris and network.negotiate-auth.allow-non-fqdn for? Configuring the other two let me achieve what I wanted.

                THANKS AGAIN! Keep up the good work!

                Anonymous said...

                Thats good

                Unknown said...

                Does this really work on Linux?
                Of course using winbind and kerberos authentication. and joined to the domain.
                I for me but I try does not work.
                What am I doing wrong?

                Anonymous said...

                Can this be pushed through GPO?

                Aqib Qureshi said...

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                belajarhebat said...

                Thank you for the information very helpful article