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"Connection not secure" message on Firefox for MAC - issue on subpages of my website

Posted

Good morning,

I'm the owner of the following website: horbiter.com

In the last few days each time I surf my website's subpages like this one, for example:

https://www.horbiter.com/patek-philippe-nautilus-5726-1a-014-recensioni-orologi/

I get a non-secure connection message back. It is quite strange since the https certificate is correctly installed.

Moreover, for your further information, I get this message while using Firefox on Mac, weheras everything is working correctly on Firefox for Windows.

Please find enclosed a print screen of the page cited above too.

I look forward to your feedback

Kind regards Gaetano Cimmino

Good morning, I'm the owner of the following website: horbiter.com In the last few days each time I surf my website's subpages like this one, for example: https://www.horbiter.com/patek-philippe-nautilus-5726-1a-014-recensioni-orologi/ I get a non-secure connection message back. It is quite strange since the https certificate is correctly installed. Moreover, for your further information, I get this message while using Firefox on Mac, weheras everything is working correctly on Firefox for Windows. Please find enclosed a print screen of the page cited above too. I look forward to your feedback Kind regards Gaetano Cimmino

Chosen solution

A certificate check shows some problems with a second certificate that might be used for client that do not support SNI. The second certificate has expired years ago, so maybe look into this.

This website uses the "Let's Encrypt Authority X3" intermediate certificate. There might be a problem with this certificate and you can try to remove it in the Certificate Manager under the "Authorities" tab (labeled as "Software Security Device").

  • Options/Preferences -> Privacy & Security
    Certificates: View Certificates

If you can't find this certificate then try to rename the cert9.db (cert9.db.old) file and remove the previously used cert8.db file in the Firefox profile folder with Firefox closed to remove intermediate certificates and exceptions that Firefox has stored. Note that current Firefox releases use a cert9.db SQLite database file.

If that has helped to solve the problem then you can remove the renamed cert9.db.old file. Otherwise you can undo the rename and restore cert9.db.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:preferences page.

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:66.0) Gecko/20100101 Firefox/66.0

More Information

FredMcD
  • Top 10 Contributor
4074 solutions 56842 answers
I had no problem with the links. There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own. https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message https://support.mozilla.org/en-US/kb/connection-untrusted-error-message [https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors?redirectlocale=en-US&redirectslug=Error+loading+web+sites Websites don't load - troubleshoot and fix error messages] http://kb.mozillazine.org/Error_loading_websites [https://support.mozilla.org/en-US/kb/what-does-your-connection-is-not-secure-mean What do the security warning codes mean]
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cor-el
  • Top 10 Contributor
  • Moderator
17083 solutions 154305 answers

Chosen Solution

A certificate check shows some problems with a second certificate that might be used for client that do not support SNI. The second certificate has expired years ago, so maybe look into this.

This website uses the "Let's Encrypt Authority X3" intermediate certificate. There might be a problem with this certificate and you can try to remove it in the Certificate Manager under the "Authorities" tab (labeled as "Software Security Device").

  • Options/Preferences -> Privacy & Security
    Certificates: View Certificates

If you can't find this certificate then try to rename the cert9.db (cert9.db.old) file and remove the previously used cert8.db file in the Firefox profile folder with Firefox closed to remove intermediate certificates and exceptions that Firefox has stored. Note that current Firefox releases use a cert9.db SQLite database file.

If that has helped to solve the problem then you can remove the renamed cert9.db.old file. Otherwise you can undo the rename and restore cert9.db.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:preferences page.

A certificate check shows some problems with a second certificate that might be used for client that do not support SNI. The second certificate has expired years ago, so maybe look into this. *https://www.ssllabs.com/ssltest/analyze.html?d=www.horbiter.com This website uses the "Let's Encrypt Authority X3" intermediate certificate. There might be a problem with this certificate and you can try to remove it in the Certificate Manager under the "Authorities" tab (labeled as "Software Security Device"). *Options/Preferences -> Privacy & Security<br>Certificates: View Certificates If you can't find this certificate then try to rename the cert9.db (cert9.db.old) file and remove the previously used cert8.db file in the Firefox profile folder with Firefox closed to remove intermediate certificates and exceptions that Firefox has stored. Note that current Firefox releases use a cert9.db SQLite database file. *https://support.mozilla.org/en-US/kb/what-does-your-connection-is-not-secure-mean If that has helped to solve the problem then you can remove the renamed cert9.db.old file. Otherwise you can undo the rename and restore cert9.db. You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the <b>about:preferences</b> page. *Help -> Troubleshooting Information -> Profile Directory:<br>Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder *http://kb.mozillazine.org/Profile_folder_-_Firefox
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Question owner

Many thanks

Gaetano

Many thanks Gaetano
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