Intranet site 401 Unauthorized kerberos SSO
Hi!
We have a intranet site that works in Edge and Chrome without issues with the site added to "internet options". But for some reason we are getting 401 Unauthorized when trying to access it from Firefox. I have tried adding the urls to: network.automatic-ntlm-auth.trusted-uris network.automatic-ntlm-auth.allow-proxies: true network.automatic-ntlm-auth.allow-non-fqdn: true network.auth.force-generic-ntlm: false network.auth.force-generic-ntlm-v1: false
Ingocnito mode , same error. I have tried disabling all plugins. Disabled DNS over HTTPS.
HTTP/1.1 401 Unauthorized Server: Microsoft-IIS/10.0 WWW-Authenticate: Negotiate X-Powered-By: ASP.NET Date: Mon, 25 May 2026 08:15:41 GMT Content-Length: 0
Regards Rasmus
모든 댓글 (2)
I assume it's configured with network.negotiate-auth.trusted-uris and related network.negotiate-auth.delegation-uris — according to https://firefox-admin-docs.mozilla.org/reference/policies/authentication/ where it's configured in most cases.
Linux specifics aside, the Firefox config steps are also described e.g. in https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/5/html/deployment_guide/sso-config-firefox
Hi!
Yes these are all tested except network.auth.private-browsing-sso, but this one did not help either. These settings are only changed in the about:config at first. Will deploy them later to everyone when we find the issue.
Regards Rasmus
글에 답글을 달기 위해서는 계정으로 로그인해야만 합니다. 계정이 아직 없다면 새로운 질문을 올려주세요.