Your connection to this site is not secure [Chrome, Firefox]

Milan Stanojevic
by Milan Stanojevic
Deputy Editor
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  • One of the most common causes for Your connection is not secure message is incorrect date and time.
  • Your connection is not secure error might be caused by a problem with your browser so changing your browser may solve this issue. We recommend Opera.
  • For any other problems with Windows, check our Windows 10 Troubleshooting section.
  • If you want more information about the network and the Internet you can find lots of interesting articles on our Network and Internet Hub.
How to fix Your connection is not secure error for goodHere's how to fix Your connection is not secure error for good

Your security is one of the most important things while browsing the Internet. However, sometimes there might be some issues that can cause Your connection is not secure message to appear.

This message can prevent you from accessing your favorite websites, so today we’re going to show you how to fix it on Windows 10.

How can I fix Your connection is not secure message?

  1. Check if your date and time is correct
  2. Change your browser to Opera
  3. Disable your antivirus software
  4. Delete cert8.db file
  5. Disable Adguard
  6. Check your certificates
  7. Install 32-bit version of Firefox
  8. Restart your router
  9. Reinstall certificates in Adguard
  10. Disable Family Safety feature
  11. Check for malware
  12. Bypass the warning
  13. Change Fiddler settings

1. Check if your date and time is correct

One of the most common causes for Your connection is not secure message is incorrect date and time. Many websites use security certificates, and each certificate has its own expiration date.

If time or date on your PC isn’t correct, your browser might detect the required certificate as outdated, thus giving you this message.

However, you can easily fix the problem simply by updating your date and time. To do that on Windows 10, you need to follow these simple steps:

  1. Right-click the clock in bottom right corner and click on Adjust date/time.
    adjust date/time your connection is not secure
  2. Date and time window will now appear. Turn off Set time automatically option.
    set time automatically your connection isn't secure
  3. Wait for a few moments and turn this option back on again. Alternatively, you can adjust the time and date manually by clicking the Change button.

If you don’t want to use Settings app, you can adjust the time and date by doing the following:

  1. Press Windows Key + S and enter date. Select Date and Time from the list of results.
    date and time your connection is not secure
  2. When Date and Time window opens, click on Change date and time button.
    change date and time button your connection is not secure
  3. Now set the correct date and time and save changes.

After setting the correct date, restart your browser and check if the problem is resolved. If your date and time become incorrect again, you might have problems with time synchronization or with your computer battery.

2. Change your browser to Opera

Opera browser

Your connection is not secure error might be caused by a problem with your browser so changing your browser may solve this issue.

And if you want to avoid any future security issues, we recommend Opera. The browser comes with a blacklist of phishing and malware sites and will warn you if the website you have requested is part of that list.

Opera gets updated pretty often too, usually after every month. And if we’re talking about security, why not add some privacy protection?

Opera browser is the only browser coming with an integrated VPN which you can activate with just a click of the mouse.

The VPN feature creates a layer of security by encrypting your Internet connection, making your browsing session hidden from others immediately.

Opera also detects and blocks those scripts or add-ons which are considered unsafe, and that makes it secure even for banking transactions.

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3. Disable your antivirus software

antivirus software

If you want to protect yourself from online threats, it’s important that you have an antivirus software installed.

Although using an antivirus is mandatory, sometimes certain antivirus tools can interfere with your Internet connection and cause Your connection is not secure message to appear.

In addition to this message, your antivirus can also prevent you from accessing your favorite websites.

To troubleshoot the issue, first, you need to temporarily disable your antivirus software.

After doing that, try to access the problematic website again. If the issue doesn’t appear it means that the problem was caused by your antivirus.

In most cases, the culprit is SSL or HTTPS scanning feature. Therefore we recommend that you check your antivirus settings and disable this feature completely.

Here’s how you can disable SSL or HTTPS scanning in the antivirus programs:

Disable ESET

Users reported that this problem appears while using ESET or BitDefender. To disable the problematic features in ESET, do the following:

  1. In ESET navigate to Advanced setup.
  2. Expand Web and email section and select SSL.
  3. Now set SSL protocol to Do not scan SSL protocol.
  4. Save changes.

Disable BitDefender

  1. Open BitDefender.
  2. Go to Privacy Settings and click on Disable Scan SSL.

Disable Avast

  1. Open Avast.
  2. Navigate to Settings > Active Protection.
  3. Click on Customize next to Web Shield.
  4. Uncheck Enable HTTPS Scanning option and click OK to save changes.

Disable Bullguard

  1. Open Bullguard dashboard.
  2. Click on Antivirus settings > Browsing.
  3. Uncheck Show safe results option for the websites that are giving you the error message.

Disable Kasersky

  1. Open Kaspersky dashboard.
  2. Click on Settings in bottom right corner.
  3. Click on Additional and then click on Network.
  4. Now navigate to Encrypted connections scanning section and check Do not scan encrypted connections. In addition, you can go to Advanced Settings section and click the Install Certificate button. Now follow the instructions on the screen to install the certificate again. We have to mention that older versions of Kaspersky don’t have this option. Therefore you need to find and disable Scan encrypted connections option instead.
  5. After you’re done, restart your PC.

If your antivirus doesn’t have this feature available, you might have to remove your antivirus and switch to a different one.

As we wrote above, this problem appears while using ESET or BitDefender so if you change your antivirus we recommend Bullguard.

The tool provides a triple-layer, real-time protection, scanning signatures, and all kinds of anomalies associated with malware.

Any detected malware is quarantined and then neutralized before the infection can even begin.

Let’s see some of its key features:

  • Recognizes trusted applications and sites without a flaw.
  • Comes with improved firewall with added layers of heavy-duty protection against intruders and malware.
  • Online protection for kids – uninterrupted gaming.
  • Easy installation and 24/7 free expert support.
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4. Delete cert8.db file

According to users, sometimes Your connection is not secure message can appear if cert8.db file is corrupted. This file is in charge of storing certificates, but if the file is corrupted you need to delete it.

We have to mention that Firefox will recreate the file, so you can delete it without any problems. To delete this file, do the following:

  1. Close Firefox completely.
  2. Press Windows Key + R and enter %appdata%. Press Enter or click OK.
    appdata run dialog unsecure connection
  3. When Roaming folder opens, navigate to \Mozilla\Firefox\Profiles\.
  4. Select your profile folder and locate cert8.db file. Delete the file.
    cert8.db your connection isn't secure
  5. Restart Firefox and check if the problem is resolved.

5. Disable AdguardAdguard

Adguard is a useful software that can prevent ads from appearing online. Although this tool is great, sometimes it can interfere with your connection and cause Your connection is not secure message to appear.

According to users, you can easily resolve this problem simply by disabling Adguard. To do that, first you need to close Firefox completely.

After that, close Adguard, wait for a few moments and turn it back on again. After doing that, start Firefox again and check if the problem is resolved.

If the issue appears again, you might want to consider disabling Adguard permanently or switching to another adblocking software.

6. Check your certificates

  1. Locate (fake)Kaspersky Anti-Virus Personal Root Certificate.cer file. By default, depending on the software version, it should be located in the following directory: C:\ProgramData\Kaspersky Lab\AVP16.0.0\Data\Cert\. If you can’t find ProgramData directory, you need to show hidden files and folders. To do that, simply open File Explorer and click on View tab and check Hidden items option.
    hidden items your connection is not secure
  2. Start Firefox and click the Menu button in the top right corner. Select Options from the menu.
    options menu your connect is not secure
  3. In the right pane click on Advanced. Navigate to Certificates tab and click on View Certificates button.
    certificates your connection isn't secure
  4. List of certificates will now appear. Navigate to AO Kaspersky Lab section and select Kaspersky Anti-Virus Personal Root. Click Delete or Distrust button.
    delete or distrust your connection is not secure
  5. Follow the instructions on the screen to remove the certificate.
  6. After deleting the certificate, click the Import button. Locate Kaspersky Anti-Virus Personal Root Certificate.cer file and follow the instructions to add it.
    import certificate your connection is not secure

After adding a new Kaspersky certificate, check if the problem still persists.

This solution applies only to Kaspersky, but if you use a different antivirus software you might be able to solve this problem by using a similar method.

7. Install 32-bit version of Firefox

According to users, the Your connection is not secure message can appear if you’re using 64-bit version of Firefox with Kaspersky.

Apparently, certain versions of Kaspersky aren’t fully compatible with 64-bit versions of Firefox. To fix the issue, you need to uninstall 64-bit version of Firefox and install 32-bit version instead.

To see if you’re using 64-bit version of Firefox, do the following:

  1. Click the Menu button in the top right corner and click the question mark icon at the bottom.
    about firefox your connection is not secure
  2. Choose About Firefox from the menu.
    about firefox menu connection not secure
  3. Now you’ll see the Firefox version that you’re using. If you have 64-bit version, uninstall Firefox and download 32-bit version instead.
    firefox version info connect is not secure

In addition to reinstalling Firefox, you can try to update both Firefox and your antivirus. According to users, this was an issue in the earlier versions of Kaspersky.

To fix the problem, it’s highly recommended that you update your antivirus and check if that solves the problem.

Keep in mind that this problem can affect other antivirus tools, therefore it’s important that you download and install the latest version of your antivirus software.

8. Restart your router

Sometimes the Your connection is not secure message can appear due to problems with your router. To fix those problems you just have to restart your router.

To restart your router, just follow these steps:

  1. Press the power button on your router (if you have a separate modem and router, you should turn off your modem as well).
  2. After turning off your modem, wait for about 30 seconds.
  3. Now press the power button again to start your router/modem.
  4. Wait while the device boots. Once your router reboots, check if the problem is still there.

This is a quick and easy solution, but it might not be permanent, so you’ll have to repeat it if the problem reappears.

9. Reinstall certificates in Adguard

Adguard web page

We mentioned in one of our previous solutions that Adguard can cause Your connection is not secure message to appear.

Several users reported that they fixed the problem simply by reinstalling certificates in Adguard. This is a simple procedure, and you can do it by following these steps:

  1. Close all open browsers.
  2. Open Adguard.
  3. Navigate to General Settings.
  4. Scroll all the way down and click on Reinstall Certificates.

After reinstalling certificates the issue should be completely resolved.

10. Disable Family Safety feature

Windows 10 allows you to use your Microsoft account to sign in to Windows. Thanks to this feature, you can protect your account using Family Safety option.

This feature is great if you want to protect your household members from malicious websites.

However, this feature can also interfere with your Internet connection and cause Your connection is not secure message to appear.

To fix this issue, you need to disable Family Safety by following these steps:

  1. Navigate to your Family account at Microsoft.
  2. Sign in with your Microsoft account.
  3. Locate the account that you want to remove and click the Remove button. To remove an adult account, be sure to remove all child accounts beforehand.

After doing that, check if the problem is resolved.

11. Check for malware

Sometimes malicious applications can change your system settings. As a result, Your connection is not secure message can appear.

To fix this problem we advise you to scan your PC for malware and remove any suspicious software. After the scan, check if the problem is completely resolved.

To do that, download Malwarebytes and install it, right-click the application shortcut and choose Run as administrator from the menu. Let Malwarebytes scan your PC and remove all infected files.

After removing the infected files, the issue should be permanently fixed. Keep in mind that you might have to perform this solution from Safe Mode.

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12. Bypass the warning

warning

If the error appears while trying to visit a trusted website, you can simply bypass the warning. To do that, follow these steps:

  1. When the message appears, click on Advanced.
  2. Now click on Add Exception.
  3. Click on Confirm Security Exception. If you want, you can view more information regarding the problematic certificate by clicking the View button.

13. Change Fiddler settings

FiddlerUsers reported that this error appears while using Fiddler. If you don’t use this service, you can skip this solution completely.

To fix this problem in Fiddler, you need to do the following:

  1. Click Tools > Fiddler Options.
  2. Navigate to the HTTPS tab.
  3. Make sure that the text says Certificates generated by CertEnroll engine.
  4. Click on Actions > Reset Certificates. Wait for the process to complete.
  5. Accept all prompts.

After doing that, the issue should be completely resolved.

The Your connection is not secure message can be quite serious and prevent you from visiting certain websites.

The usual cause for this problem can be an incorrect date and time or your antivirus, so be sure to check them first. If the problem is still present, feel free to try all other solutions from this article.

This article also solves the following issues:

  • Your connection to this site is not fully secure
  • 192.168.1.1 your connection to this site is not private
  • Your connection to this page is not secure kindle

FAQ: Read more about site connection issues

  • How can I fix your connection to this site is not fully secure?

To fix the Your connection to this site is not fully secure issue, first, check your time and date. If they are correct, you can fix the issue by following our expert guide.

  • Is it safe to use not secure website?

If you visit a web page and you are warned that it’s not secure it’s probably because the web page or website you are visiting is not providing a secure connection. Make sure you installed good antivirus software before going forward.

  • What happens if you visit an unsecure website?

If your browser displays a message saying that a page is unsecure, this means SSL (TLS) encryption is off. If you’re connected to a public Wi-Fi here’s a guide on how to protect your Windows 10.

Editor’s Note: This post was originally published in March 2019 and has been since revamped and updated in July 2020 for freshness, accuracy, and comprehensiveness.