How can I fix the Mozilla firefox secure connection failed?

Mozilla firefox secure connection failed?

Fix Secure Connection Failed in Mozilla Firefox September 25, 2018, By Alberto Normally, Major web
browsers warn its users when it finds any error with SSL certificates of any HTTPS websites. Different
browsers show different warning messages.

 Mozilla Firefox is one of the most famous and popular web browsers which warn its users by showing
the message “Secure Connection Failed”. It’s a pretty good thing. But, Sometimes, It may not show this
warning properly.

 As a result, Users may not visit many HTTPS websites which clearly hurt user experience. Obviously,
you will want to get rid of this kind of problem. So, and you have To fix secure connection failed error,
You must take proper steps. Before that, We will know some information about it and This may show you
several error codes.

 One of the most common codes are: sec_error_reused_issuer_and_serial .sec_error_reused_untrusted_
issuer sec_error_ca_cert_invalid Normally, People face this problem while visiting HTTPS websites. But,
Sometimes it can appear for nonsense I mean non-https sites. Yes, It definitely has a reason. 

In most cases, Antivirus and firewall are responsible for it. Else, Some misconfigurations in your PC can
cause it. Fix Secure Connection Failed in Firefox: Before Following my suggestion, Please make sure,
Your PC’s date, time, time zone are correct and you are using the latest Mozilla firefox. We will just follow
3 methods to fix this problem. 

These are: Modify Firefox Configuration: At first, we will modify some SSL related settings from about:
config of Firefox. In most cases, It will work. First of all, you will need to type about: config in the address
bar and hit enter. 

Then, you will see a new window where you will find a warning message 

“This might void your warranty“. Don’t worry. Just you have to click on “I accept Risk” to go forward to fix
a secure connection failed problem.

 After doing it, Search for browser.ssl_override_behavior and double-click on it. Then, change its value
from 1 to

 2. Then you have to search for security.SSL.enable_ocsp_stapling and it could be then you have to
Double click on it to change its value to false. Now, you have to Restart Mozilla Firefox and see if it fixes
secure connection failed error.

 Sometimes, you may still encounter this error. There is an option that will surely fix your problem. But,
I will hardly recommend it. Because It may or it will disable a secure connection failed warning message
for all HTTP or https site with good or bad cert. Anyway, You will just need to find browser.xul.error and
pages.expert could be the bad -cert in about: config. Then, you to Set its value to True. You must Verify
Proxy Settings for Firefox: Sometimes, and Your proxy settings for this browser can produce that warning
message. So, you can just verify the device if it is set to the default settings or not. To do it, At first, Click
on three line icons and choose Options. Then, Click on Advanced and then go to the Network tab. Now,
Click on Settings from the connection section. Make sure Use system proxy settings are marked. You need
to Modify Antivirus / Firewall Settings to Fix Secure Connection Failed in Firefox: All popular antivirus,
firewall, and internet security programs have SSL scan feature. It may be that sometimes give you the
false-positive result. It may interrupt to access some https site it may cause. 

As a result, firefox may give you such a warning message and notification. So, you have to “fix secure
connection failed”, We must disable or modify this feature from these programs. Different programs have
different options to turn on / off or modify this feature. 

You can check the user manual to know about it. I hope so This article will help you to resolve firefox
secure connection failed error. If you know any other good solution, You can share it with us by comment.

Follow this step if you still get in trouble and error does not fix, then you have to call to Mozilla support 1-888-410-9071 call on this number you will instantly support from Mozilla support team.