Troubleshooting an insecure connection in the Mozilla Firefox browser

Mozilla Firefox is a web browser that is included in the list of the most popular browsers of our time. It has serious internal protection, which, at times, protects too well, preventing access to obviously safe sites. Today we will talk about ways to resolve the “Your connection is not secure” error.

When you go to a secure web resource, the Mozilla Firefox browser necessarily checks for the presence of fresh certificates that guarantee the complete security of the site. If the browser fails to detect them, the message “Your connection is not secure” is displayed on your screen.

Unfortunately, this error often occurs to users when going to web resources that clearly have up-to-date certificates. If you encounter a similar problem, then one of the methods described below should definitely help you.

Method 1: setting the current armor and time

Each security certificate has its own validity period. If, for example, the date and time are set incorrectly on your computer, then this data will not match the certificate data, which means Firefox will not allow you to access protected sites.

1. To change the date and time to the current ones, right-click on them and select the item in the pop-up drop-down list "Setting the date and time".
   
   
   
   
   
2. A settings window will appear on the screen in which you should activate the item "Set time automatically" or manually enter this data, but be sure to make sure that the date and time are set correctly.
   
   
   
   

If the problem was an incorrectly set date and time, then after making the necessary changes, the problem will be completely eliminated.

Method 2: setting up the antivirus program

If you use an antivirus program on your computer, then you should make sure that it is not blocking access to the site. Checking this is quite simple: shut down the antivirus (temporarily), and then check the functionality of the browser.

If after performing these steps the problem is resolved, then the real problem is that the antivirus is taking the protection of your computer too seriously. In this case, you should go through the antivirus settings and find the section responsible for Internet protection: network scanning, SSL checking, protection while surfing the web, etc. Disable this type of protection, after which Firefox will return to normal.

Method 3: checking viral activity

Almost any virus that gets onto a user’s computer tends to disrupt the browser. In this regard, if you encounter problems when navigating to websites, you should think about the presence of virus activity.

In this case, you will need to scan your computer for viruses using an antivirus program installed on the computer or a separately downloaded utility, for example, Dr.Web CureIt. If the scan results reveal viruses on your computer, you will need to get rid of them and then restart your computer.

Method 4: Reinstall the browser

The Mozilla Firefox web browser may not work correctly as a result of a system failure or virus activity (which we hope you have eliminated), so you should really try to reinstall it.

1. To do this, open "Control Panel" and proceed to the section "Programs and Features".
   
   
   
   
   
2. In the list of programs available on your computer, find Mozila, right-click on the browser and select "Delete".
   
   
   
   
   
3. Finish uninstalling the browser.
   
   
4. Follow the link at the end of the article to the official website of the Firefox developer and download the latest distribution. Launch it and install the browser on your computer.
   

Method 5: Delete the certificate store

The Mozilla Firefox browser stores all received certificates on the computer in the profile folder. In this case, we can assume that the storage was, for example, damaged, so the solution to the problem would be to reinstall it.

1. To accomplish your plans, you will need to delete this storage. To do this, click on the browser menu button in the upper right corner and click on the icon with a question mark.
   
   
   
   
   
2. A list will pop up on the screen in which you should click on the button "Information for problem solving".
   
   
   
   
   
3. A window will appear on the screen in a new tab in which you will be required to select an item "Show folder".
   
   
   
   
   
4. When the profile folder appears on the screen, you will need to close the browser, find and delete the file cert8.db.
   
   
   
   
   
5. From now on, you can try to launch the browser and check its functionality.
   

Method 5: Check for updates for your computer

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If automatic installation of system updates is disabled on your computer, then a problem with Firefox may arise for this very reason.

You can check your browser for updates through the menu “Control Panel” – “Windows Update”.

If your search found current updates, you will need to install them.

Method 6: Working in Incognito mode

This method does not solve the problem, but only allows you to navigate to sites in Firefox in a workaround. The essence of the method is to use Incognito mode - a function when the browser does not save any information about the site on the computer.

To enable Incognito mode, click on the Internet browser menu button in the upper right corner, and then select "Private window".

Method 7: Deactivate the proxy

If proxy operation is activated in your browser, then this particular mode can easily affect the incorrect display of sites.

1. Click on the Firefox menu button and navigate to the section "Settings".
   
   
   
   
   
2. Select a section on the left side of the window "Additional", and then select the tab "Network". In the block "Compound" click on the button "Tune".
   
   
   
   
   
3. In the window that opens, check the box "No proxy", and then save the changes.
   
   
   
   

Method 8: adding a site to exceptions

This method should only be used if you are completely confident in the security of the site. Its essence is that you will add the site to the list of exceptions, so that Firefox will not find fault with its certificates.

1. To do this, go to the problematic site. When the “Your connection is not secure” window opens on the screen, click on the button "Additionally".
   
   
   
   
   
2. Click the button below "Dobavit isklyuchenie".
   
   
   
   
   
3. And finally, in the new window that opens, click on the button "Verify Security Exception".
   
   
   
   

Actually, these are all recommendations that can solve the problem with an unsecured connection in the Mozilla Firefox browser. We hope this article was useful to you and you were able to return your browser to normal functioning. 

Download Mozilla Firefox browser for free

Download the latest version of the program from the official website https://www.mozilla.org/ru/firefox/new/