Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

I get 'This connection is untrusted' and there is no 'I understand the risks' link for me to click on and proceed.

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by christ1

more options

For quite some time now, everytime I try to open the coursera.org website, I get the untrusted connection message. And there is no option to help me get on to the page. I click on technical details and it says this: www.coursera.org uses an invalid security certificate. The certificate is only valid for the following names: www.adstage.io, platform.adstage.io, express.adstage.io (Error code: ssl_error_bad_cert_domain)

I need to sign in to this website soon and will appreciate any help.

For quite some time now, everytime I try to open the coursera.org website, I get the untrusted connection message. And there is no option to help me get on to the page. I click on technical details and it says this: www.coursera.org uses an invalid security certificate. The certificate is only valid for the following names: www.adstage.io, platform.adstage.io, express.adstage.io (Error code: ssl_error_bad_cert_domain) I need to sign in to this website soon and will appreciate any help.

All Replies (1)

more options

You possibly picked up some sort of adware/malware on your computer which is intercepting your secure connection. Scan your machine for malware. https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware#w_how-do-i-get-rid-of-malware