FireFox Prompting for Credentials for Intranet Sites
I've stumbled upon an issue that FireFox Users in a Corporate Environment are being prompted for Authentication to Internal sites. Essentially what's happening is that the browser isn't passing the User Credentials for Internal sites and causing users to log into each internal site they visit.
It looks like FireFox has added some parameters to allow for User Credentials to be passed to specifically listed sites. I'm currently using version 15.0.1.
Here are the steps I used to stop the many prompts:
- Open FireFox
- Type "about:config" in the Address Bar
- Make sure you read the warning message
- In the Search, type "network.negotiate"
- Double click network.negotiate-auth.delegation-uris
- As a single line and separated my commas, enter the URL's of the sites that you wish to pass Credentials for
- http://intranet.contoso.com, http://accounting.contoso.com
If you're using Host Headers, you may need update another parameter: network.automatica-ntlm-auth.trusted-uris
- Update network.automatica-ntlm-auth.trusted-uris by listing the Domain Suffix for your internal sites:
- .contoso.com, litware.com
If you're using Kerberos Authentication and Host Headers you may want to update another parameter: network.negotiate-auth.trusted-uris
- Update network.negotiate-auth.trusted-uris by listing the Domain Suffix for your internal sites
- .contoso.com, litware.com
Hopefully this will eliminate multiple prompts for credentials for FireFox Users working in a Corporate environment.
Enjoy!
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