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.

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.

Unable to add an exception for HSTS turned out to have a really bad downside

  • 1 reply
  • 1 has this problem
  • 3 views
  • Last reply by cor-el

joshudson
joshudson
more options

I'm sitting here looking at a website that's supposed to have an auto-renewing Let's Encrypt certificate that expired yesterday; the site is serving with active HSTS and an expired cert.

The loss of the VPN software is critical; we need this to work expired certificate or not. (Yes I can tell the difference between an expired cert and a forgery.)

I'm sitting here looking at a website that's supposed to have an auto-renewing Let's Encrypt certificate that expired yesterday; the site is serving with active HSTS and an expired cert. The loss of the VPN software is critical; we need this to work expired certificate or not. (Yes I can tell the difference between an expired cert and a forgery.)

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Maybe check this thread to see if there is something useful.

Note that this might be harder to fix in an outdated Firefox version like 84.0 that you use.