This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

37.01 no longer works with Windows Authenticated websites?

  • 2 uphendule
  • 12 zinale nkinga
  • 5 views
  • Igcine ukuphendulwa ngu jbeck523

more options

We run two websites internally (SharePoint, custom ASP.NET) that use Windows Authentication. After my update today, I can no longer authenticate through, my user credentials just keep bouncing back and I get prompted again and again? Authentication works with Safari and IE?

We run two websites internally (SharePoint, custom ASP.NET) that use Windows Authentication. After my update today, I can no longer authenticate through, my user credentials just keep bouncing back and I get prompted again and again? Authentication works with Safari and IE?

All Replies (2)

more options

There are these two prefs that you can check on the about:config page that deal with NTLM v1:

  • network.negotiate-auth.allow-insecure-ntlm-v1
  • network.negotiate-auth.allow-insecure-ntlm-v1-https

See also: Firefox -> Preferences -> Advanced -> Network: Connection -> Settings: "Do not prompt for authentication if password is saved"

more options

Thank you for the response, cor-el. I already have network.negotiate-auth.allow-insecure-ntlm-v1 set to TRUE from previous updates. I cannot find the HTTPS version of that value (please see attached image).

I do get the popup for windows auth, I enter my username / password and it just keeps bouncing back and re-prompting me.