Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Firefox doesn't show popup when using negotiate method

  • No replies
  • 1 has this problem
  • 10 views
jhcopano
jhcopano
more options

Hello,

I try to access the Internet through my proxy. It authenticates the users with the negotiate method, in other words, it uses Kerberos as the first option and NTLM as fallback.

This configuration works properly with other browsers, but it doesn't with 80.0.1 Firefox. I checked with a wireshark capture that Firefox uses NTLM but it never shows the pop-up. So the user sees a 407 error and cannot browse.

I've read some threads I have to enable NTLM in Firefox settings but it doesn't work: https://support.mozilla.org/en-US/questions/1013449 https://superuser.com/questions/664656/how-to-configure-firefox-for-ntlm-sso-single-sign-on

Any idea?

Best regards, Javier

Hello, I try to access the Internet through my proxy. It authenticates the users with the negotiate method, in other words, it uses Kerberos as the first option and NTLM as fallback. This configuration works properly with other browsers, but it doesn't with 80.0.1 Firefox. I checked with a wireshark capture that Firefox uses NTLM but it never shows the pop-up. So the user sees a 407 error and cannot browse. I've read some threads I have to enable NTLM in Firefox settings but it doesn't work: https://support.mozilla.org/en-US/questions/1013449 https://superuser.com/questions/664656/how-to-configure-firefox-for-ntlm-sso-single-sign-on Any idea? Best regards, Javier