How to Resolve the Secure Connection Failed Issue in Firefox

Firefox Not Responding

Secure Connection Failed Issue

One of the common issues, which users of the Firefox browser encounter while trying to browse, is the Secure Connection Failed warning. It is every bit as problematic as Firefox not responding, and can get on your nerves when you are seriously trying to connect to a particular website.

SSL (Secure Socket Layer) is an encrypted protocol that secures connections made on the internet. If a website has HTTPS:// at the beginning of the URL, then it has said to be secure. If Firefox find that a website is not secure, then you will get the Secure Connection Failed message, which is usually as bad as Firefox not responding, because you will not be able to connect to some websites. Following are some fixes you can try to remedy the situation.

Check the SSL Setting for Firefox

Firefox Not Responding


  • In the URL bar, type in About:Config. Hit Enter.
  • If you see a message that says This Might void your warranty!, get past it by clicking on I’ll be careful, I Promise.
  • Go to the search box and type in ssl.enable_ocsp_stapling.
  • You will find that the value field is set as true. Double click on this to set it to false.
  • Check to see if this lets you connect to the website. If not, move on to the next method.

Check the Proxy Setting

Firefox Browser

If you have a proxy configuration, there is a chance of getting the Secure Connection Failed message. Remember, this is as bad as Firefox not responding.

  • Go to the menu bar, open the Tools menu, and click on the Option
  • Move to the Advance panel and choose the Network
  • Hit the Setting button, which you will find in the Connection
  • After the Connection Setting window comes up, check whether it is set to Manual proxy connection. See that all the details are entered correctly, and hit OK. If it is not set to Manual proxy connection, then make no changes.

Check the SSL Configuration/Installation of the Website

The SSL of the website needs to be configured properly, or else the Secure Connection Failed message will appear.

  • Test the SSL configuration or installation of the site using a free SSL checker online. You will be able to find one by simply searching for “free SSL checker” in Google.

If nothing works, try loading the website on another browser. If it loads without a problem on other browsers, it means that the issue stems from Firefox not finding the website to be trustworthy. In such cases, get in touch with browser support technicians for advanced help.


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