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Firefox message: "Secure connection failed" - what to do?

  • Nov 14, 2025
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You get of the Firefox Browser, the error message "Secure connection failed" instead of the web page, this may have good reasons. The site is however considered to be trustworthy, you can set the Blockade to be in force.

Secure connection failed - Server-Blockade by Firefox

As of Version 34 blocks Firefox insecure SSL sites, because they easily are vulnerable. Instead of the web page the error message that appears is: "Secure connection failed". If you do not know which side you should take the warning seriously. Alternatively, you can bypass the message:
  • Enter in the address bar of the browser, the command "about:config".
  • Then, you confirm Firefox, "you will be careful."
  • After that, you carry in the search box "security.ssl.renego_unrestricted_hosts" a.
  • Finally, double-click on the found entry, and then enter in the input field the URL of the blocked page, but without the extra "https://".
The blocked page in Firefox
In order to on the Internet whenever possible to be on the safe side, you should Firefox regularly update.

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