Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Getting 'Connection is Untrusted' error on secure site with a valid SSL certificate. The site is elearning.louisville-redcross.org. Error comes up when I click 'Confirm' button on registration page. Tested site on IE, Opera, and Safari--no problems.

  • 1 antwoord
  • 61 hierdie probleem
  • 1 view
  • Laaste antwoord deur cor-el

acardfan
acardfan
more options

Here is the complete error message:

This Connection is Untrusted

You have asked Firefox to connect securely to elearning.louisville-redcross.org, but we can't confirm that your connection is secure. Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified. 

         What Should I Do?          
           If you usually connect to

this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn't continue.

Technical Details elearning.louisville-redcross.org uses an invalid security certificate.

The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer)

I Understand the Risks 

If you understand what's going on, you

can tell Firefox to start trusting this site's identification. Even if you trust the site, this error could mean that someone is tampering with your connection. Don't add an exception unless you know there's a good reason why this site doesn't use trusted identification.

Here is the complete error message: This Connection is Untrusted You have asked Firefox to connect securely to elearning.louisville-redcross.org, but we can't confirm that your connection is secure. Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified. What Should I Do? If you usually connect to this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn't continue. Technical Details elearning.louisville-redcross.org uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer) I Understand the Risks If you understand what's going on, you can tell Firefox to start trusting this site's identification. Even if you trust the site, this error could mean that someone is tampering with your connection. Don't add an exception unless you know there's a good reason why this site doesn't use trusted identification.

All Replies (1)

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

Web servers need to send all required intermediate certificates.

The "elearning.louisville-redcross.org" server doesn't send the "Network Solutions Certificate Authority" certificate.

If Firefox hasn't stored that intermediate certificate from a visit in the past to website that has send it then you will get the untrusted error message.