Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

proxy authentication failed in MAc OS 10.8.3

  • 4 réponses
  • 3 ont ce problème
  • 306 vues
  • Dernière réponse par Praveen.selvam
  • Résolu

I am using firefox 21.0 in Mac os 10.8.3.We are using proxy server for browsing.While browsing internet firefox prompts for proxy username and password,after entering the correct user name and password it shows proxy authentication failed,Another round of authentication required.The same user name and pssword in working fine in safari in the same mac book.


Plz Help

I am using firefox 21.0 in Mac os 10.8.3.We are using proxy server for browsing.While browsing internet firefox prompts for proxy username and password,after entering the correct user name and password it shows proxy authentication failed,Another round of authentication required.The same user name and pssword in working fine in safari in the same mac book. Plz Help

Solution choisie

Dear Dawid,

Thanks for your valuable reply.

Thanks a lot

Lire cette réponse dans son contexte 👍 0

Toutes les réponses (4)

Hi There!

Please check the solution mentioned here: http://kb.globalscape.com/KnowledgebaseArticle10522.aspx I remember someone else also suggested setting this option network.automatic-ntlm-auth.allow-proxies to false as well.

Hope this helps!

Have a good one!

Dawid

Dear Dawid

Thanks for the reply

After changing the above settings its working fine.

can i know what these two changes does in the firefox

Glad it worked for you!

network.negotiate-auth.allow-proxies Enable/disable SPNEGO by default when challenged by a proxy server.

network.automatic-ntlm-auth.allow-proxies Enable/disable automatic use of the operating system's NTLM implementation to silently authenticate the user with their Windows domain logon with proxy servers.

I am not an expert on this topic and base my reply on what I've found on the web, but you may have a look here for better understanding of how authentication works in Firefox:

https://developer.mozilla.org/en-US/docs/Integrated_Authentication

Solution choisie

Dear Dawid,

Thanks for your valuable reply.

Thanks a lot