The Perfect Blog Title: 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.

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.

Open Firefox
In the Address bar type about:config
In the search/filter field type ntlm
Set network.automatic-ntlm-auth.trusted-uris to .company_name.com
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 .company_name.com
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...: YESSSSSSSSSSSSSSSS

Thank You; March 6, 2014 at 8:56 AM
ankit said...: Above comment made my day...wohoo!!; March 6, 2014 at 10:34 AM
James said...: Thank you!!!! :); March 19, 2014 at 6:15 PM
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!; March 27, 2014 at 4:03 PM
Anonymous said...: Thats good; April 22, 2014 at 2:42 AM
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?; May 5, 2014 at 3:22 PM
Anonymous said...: Can this be pushed through GPO?; May 23, 2014 at 9:33 AM
belajarhebat said...: Thank you for the information very helpful article; September 21, 2015 at 3:21 AM