However, this error may also appear falsely, even on trusted websites. It is usually caused by invalid certificates or third-party interference with your internet connections. Third-party interference may range from simple parental controls and antivirus software to spyware/malware.
Causes of “Your Connection is Not Secure” Error
How to Fix Your Connection is Not Secure?
These fixes primarily apply to Firefox browsers, but the general idea behind the fixes is similar for other web browsers as well. You can use this article for reference while troubleshooting this issue on other browsers as well.
Incorrect date and timeAntivirus programsParental controlsOutdated browserMalware
Fix the Date and Time
Websites require certificates of authenticity to connect with user PCs. These certificates have an expiry date as well, and they are only valid until the expiry date. The wrong date and time may cause these certificates to get wrongfully expired. So you have to confirm if the date and time settings on your PC are correct. If they are incorrect, here’s how you fix it:
Update Browser
Old web browsers use old technologies which may be obsolete. Updating your browser will solve any problems caused by old unused policies. Here’s how you update your browser: Additionally, you can also go to the official Firefox website and download the latest Firefox version from there.
Reinstall Antivirus
This error can occur due to missing certificates as well. You can try to reinstall your antivirus so that it reinstates the certificates as well. Here’s how you reinstall your antivirus: Also, make sure Firefox is closed when you install the antivirus.
Disable Third-party Web Protection
Certain antiviruses also have a web protection feature with their base system protections. These web protection services insert their own certificates and do the certification validation work instead of the browsers. They have their own list of certificates to match with. This can also cause a not secure connection error. Windows has preinstalled antivirus software that includes web protection services. The Windows defender generally doesn’t cause this issue. However, if you have third-party antivirus installed, this error may appear more often. You can disable the web protection features provided by third-party antivirus to fix this problem. The Windows defender has a web-protection service as well. Using the defender’s protection system may solve this error. Here’s how you enable it:
Change Browser Preferences
Different software has different security policies. Firefox allows changes to its preference settings to provide transparency on these policies. This setting will allow the browser to additionally look into the Windows certificate trust store for any certificate authorities which were custom added by the user or any third parties. The following steps will guide you on how to change it: By changing the preference setting, you are allowing the Firefox browser to import certificates from other sources. If this step doesn’t work and you have security concerns, you can revert the changes by backtracking the steps and changing it back to false.
Check for Malware
Malware on your PC can also sometimes cause this error. They can intercept the data traffic between your PC and the internet. You can scan and remove malware from your device using Windows defender. Here’s how you do it:
Check for The Certificate
You can check what entity issued the certificate for the specific website by checking the certificate itself. You can check the certificate by clicking on the icon before the URL in the address bar. It can help identify the culprit of the problem. You will have to troubleshoot the culprit accordingly. Here’s how you check the certificate:
title: “7 Ways To Fix Your Connection Is Not Secure On Firefox " ShowToc: true date: “2022-12-11” author: “Michael Laughman”
However, this error may also appear falsely, even on trusted websites. It is usually caused by invalid certificates or third-party interference with your internet connections. Third-party interference may range from simple parental controls and antivirus software to spyware/malware.
Causes of “Your Connection is Not Secure” Error
How to Fix Your Connection is Not Secure?
These fixes primarily apply to Firefox browsers, but the general idea behind the fixes is similar for other web browsers as well. You can use this article for reference while troubleshooting this issue on other browsers as well.
Incorrect date and timeAntivirus programsParental controlsOutdated browserMalware
Fix the Date and Time
Websites require certificates of authenticity to connect with user PCs. These certificates have an expiry date as well, and they are only valid until the expiry date. The wrong date and time may cause these certificates to get wrongfully expired. So you have to confirm if the date and time settings on your PC are correct. If they are incorrect, here’s how you fix it:
Update Browser
Old web browsers use old technologies which may be obsolete. Updating your browser will solve any problems caused by old unused policies. Here’s how you update your browser: Additionally, you can also go to the official Firefox website and download the latest Firefox version from there.
Reinstall Antivirus
This error can occur due to missing certificates as well. You can try to reinstall your antivirus so that it reinstates the certificates as well. Here’s how you reinstall your antivirus: Also, make sure Firefox is closed when you install the antivirus.
Disable Third-party Web Protection
Certain antiviruses also have a web protection feature with their base system protections. These web protection services insert their own certificates and do the certification validation work instead of the browsers. They have their own list of certificates to match with. This can also cause a not secure connection error. Windows has preinstalled antivirus software that includes web protection services. The Windows defender generally doesn’t cause this issue. However, if you have third-party antivirus installed, this error may appear more often. You can disable the web protection features provided by third-party antivirus to fix this problem. The Windows defender has a web-protection service as well. Using the defender’s protection system may solve this error. Here’s how you enable it:
Change Browser Preferences
Different software has different security policies. Firefox allows changes to its preference settings to provide transparency on these policies. This setting will allow the browser to additionally look into the Windows certificate trust store for any certificate authorities which were custom added by the user or any third parties. The following steps will guide you on how to change it: By changing the preference setting, you are allowing the Firefox browser to import certificates from other sources. If this step doesn’t work and you have security concerns, you can revert the changes by backtracking the steps and changing it back to false.
Check for Malware
Malware on your PC can also sometimes cause this error. They can intercept the data traffic between your PC and the internet. You can scan and remove malware from your device using Windows defender. Here’s how you do it:
Check for The Certificate
You can check what entity issued the certificate for the specific website by checking the certificate itself. You can check the certificate by clicking on the icon before the URL in the address bar. It can help identify the culprit of the problem. You will have to troubleshoot the culprit accordingly. Here’s how you check the certificate:
