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To fix this, you'll need to delete that file - cert8.db - while Firefox is closed. Loading... Afterwards follow the steps from above. Reinstalling Windows will erase everything from your hard drive, allowing you to start again with a fresh system. Check This Out

How to install pyrit in Kali Linux Archives September 2016(1) August 2016(1) February 2016(1) November 2015(1) August 2015(2) July 2015(1) May 2015(1) November 2014(1) October 2014(4) July 2014(1) February 2014(1) January I have disabled SSL on AVG as the help pages suggest, and have tried reinstalling, both with no effect. Thanks! Even Chrome could not open Google.com. https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER

Sec_error_unknown_issuer Google

Support Forum This thread was archived. Right-Click to bring up the Start Context Menu. Import In Firefox, open the Certificate Manager using: "3-bar" menu button (or Tools menu) > Options > Advanced > Certificates mini-tab > "View Certificates" button Click the Authorities mini-tab and then Hi, Jscher2000 Do you mind giving me the link of the procedure please?

Bypassing the warning Warning: You should never add a certificate exception for a legitimate major website or sites where financial transactions take place – in this case an invalid certificate can Reply joe viorel says: March 8, 2015 at 12:50 pm It doesn't work for me also. If the website allows it, you can add an exception in order to visit the site, in spite its certificate is not being trusted by default: On the warning page, click Your Connection Is Not Secure Firefox when a solution is found.

Cancel Subscribe to feed Question details Product Firefox Topic Fix problems with websites (Facebook, YouTube, webmail etc.) System Details Windows 7 Firefox 41.0 More system details Additional System Details Installed My firefox suddenly could not access websites such as YAHOO Mail, Google Mail, Facebook, Linkedin....etc while firefox is able to access other regular websites. Follow the steps in the Wizard to choose a restore point. Sign in Share More Report Need to report the video?

Top PC Tech 1,572 views 5:03 Secure Connection Failed at FireFox Solution---2016 - Duration: 4:11. Your Connection Is Not Secure Firefox Fix Read the text describing the problems with the website. That should fix the error message “400 Bad Request”, if you have any questions or concerns please leave a comment below. If you use a 2016 version of Kaspersky: In the Encrypted connections scanning section check the Do not scan encrypted connections option and confirm this change.

Firefox Sec_error_unknown_issuer Cannot Add Exception

If the certificate cannot be validated, Firefox will stop the connection to the website and show a "Your connection is not secure" error message instead.

The most common causes are security software scanning encrypted connections or malware listening in, replacing legitimate website certificates with their own. Sec_error_unknown_issuer Google FF 48 and Win10 - Addons won't sync? Sec_error_unknown_issuer Bypass I hope you have a solution for that.

In fact, one misplaced comma can prevent your PC from booting entirely! his comment is here How To Fix Firefox Error sec_error_unknown_issuer Below is a list of troubleshooting steps to resolve your Error sec_error_unknown_issuer problems. Share this article: http://mzl.la/1lFJl3h Was this article helpful? I have not being redirected to a notification screen (I did check the description from your provided link) My version is 41.0 It suddenly has this issue last week. Error Code Sec_error_unknown_issuer Firefox Google

I am attaching some screen shots for reference. Send to Email Address Your Name Your Email Address Cancel Post was not sent - check your email addresses! Firefox) under the Name column. this contact form Drivers can work one day, and suddenly stop working the next day, for a variety of reasons.

Causes of Error sec_error_unknown_issuer Corrupt download or incomplete installation of Firefox software. Sec_error_unknown_issuer Firefox Disable Cancel Subscribe to feed Question details Product Firefox Topic Fix slowness, crashing, error messages and other problems System Details Windows 7.1 Ultimate Firefox 43.0.1 More system details Additional System Details Please ask a new question if you need help.

Other broswers (IE, Chrome) do not have this issue.

A window with your profile files will open. You can see more Details like intermediate certificates that are used in the Details pane. Use the DER format and save to a convenient location. Sec_error_unknown_issuer About:config Thanks Hi, I have reviewed many similar posts but none of them works to fix my issue.

If they are all the same, does it seem normal that "Bloomberg LP" would be intercepting your internet connection? First of all check the computers time and date are correct. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. navigate here You can change this preference below.

Reply Dilip says: July 20, 2016 at 1:05 am It works for me. Click on the Firefox-associated entry. In the dialog that opens click on Install certificate… and follow the on-screen instructions.If you use a 2015 version of Kaspersky: uncheck the Scan encrypted connections option. Alternatively you can click on Advanced Settings in order to try to trigger a reinstallation of Kaspersky's certificate.

Quick Fix: Kodi Add Ons Not Getting Updated - Solve On All Devices Firefox Latest Version May Break Flash Player Plugin More On IWF1 Kaspersky Lab Builds A New Operating System, Issue: "This Connection is Untrusted" with "sec_error_unknown_issuer ". Chosen solution Check the date and time and time zone in the clock on your computer: (double) click the clock icon on the Windows Taskbar. Troubleshoot "Secure Connection Failed" SHARE Tweet Like Written by Liron Related Posts Firefox Releases Version 50.0, Updates Keyboard Shortcuts, Brings Emoji To Linux How To Fix Firefox 50 Video Playback Issues

This test is because security software can interfere with certificates. Restore your computer. To do so, we will need to find and open the profile folder. ESET and BitDefender are usual culprits here.

Join 416 other subscribers Email Address Follow Me Recent CommentsnotepadGuy on How to Fix "ShellExecute failed (2): Is this command correct?" on Notepad++Amelia on How to Fix the "400 Bad Request" A backup is automatically created before each scan, with the ability to undo any changes in a single click, protecting you against the possibility of PC damage. The problem is Firefox thinks you are subject to a '' Man In The Middle Attack'' although that my not in fact be what is happening. * See http://simple.wikipedia.org/wiki/Man-in-the-middle_attack **Or for Reply Pingback: How to Troubleshoot the Error Code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites as Mozilla Firefox - Identify Browsers Issues And Get Solution Robzuz says: April 30, 2016 at 7:07 pm Works

Working... Let's see if we can narrow down what is going on. Step 5: Utilize Windows System Restore to "Undo" Recent System Changes Windows System Restore allows you to "go back in time" with your PC to help fix your Error sec_error_unknown_issuer problems. Click Yes.

What can I do? If you are not currently backing up your data, you need to do so immediately (download a highly-recommended backup solution) to protect yourself from permanent data loss. You can see more Details like intermediate certificates that are used in the Details pane. I tried every single solution for it but nothing fixed it so far.

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