Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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.

http authentication failing on all sites, does not even prompt me for user/pass

  • 3 replies
  • 39 have this problem
  • 17 views
  • Last reply by Kohei

aixarat
aixarat
more options

Hi,

After an apt-get update, sites that use HTTP authentication do not prompt for credentials and go straight to HTTP:401. It is only affecting this browser, others have no issues. I also updated a FF in Windows, no issues there after the update.

Hi, After an apt-get update, sites that use HTTP authentication do not prompt for credentials and go straight to HTTP:401. It is only affecting this browser, others have no issues. I also updated a FF in Windows, no issues there after the update.

Chosen solution

See https://developer.mozilla.org/en-US/Firefox/Releases/30/Site_Compatibility#Security for the details and workaround.

Read this answer in context 👍 12

All Replies (3)

cor-el
cor-el
  • Moderator
more options

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
aixarat
aixarat Question owner
more options

Hi. I started it in safe mode, but this did not fix the problem. Just to double check I tried after manually disabling each of the three plugins I have, and also all of them at the same time, but that did not help either.

Any HTTP authenticated site sends me straight to the 401 error, as if it automatically tried to authenticate.

Kohei
Kohei
more options

Chosen Solution

See https://developer.mozilla.org/en-US/Firefox/Releases/30/Site_Compatibility#Security for the details and workaround.