CTICoder

A random spillage of programming (and other) thoughts

Archive for October 2nd, 2009

Enabling Automatic NTLM Authentication in Firefox

Posted by Michael Bray on October 2, 2009

When browsing using Internet Explorer to a site on an internal network that is configured with Integrated Windows Authentication, such as http://intranet, IE will automatically attempt to use your domain credentials to log in.  It’s always pained me that Firefox didn’t do the same thing.  I thought it had something to do with some M$ hocus pocus undocumented feature magic that prevented FF from being able to do this.  SO wrong.  It’s easy to enable Firefox to do the same:

To enable this feature in Firefox, go to the “about:config” url in Firefox, and then find the configuration parameters for “network.automatic-ntlm-auth.trusted-uris”, “network.negotiate-auth.delegation-uris”, and “network.negotiate-auth.trusted-uris”.  In those values, put the URIs that you want Firefox to automatically pass authentication to.  You can either use the http:// prefix or you can leave it off, and you can specify multiple parameters by separating them with a comma.

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