Each Web site returns "your connection is not safe."

I am on a mac under OS 10.10.3 and just installed Firefox 47.0.1. However, I am unable to connect to any Web site, but receive

"Your connection is not secure.

The owner of www.google.com has misconfigured their Web site. To protect your data against theft, Firefox has not connected to this Web site.

This site uses HTTP Strict Transport Security (HST) to specify that Firefox didn't connect safely. As a result, it is not possible to add an exception for this certificate. »

It's the same message that I receive for each Web site, including Mozilla. I've been unable to find a workaround, and so far this has made just useless browser. It is only to proceed with Firefox, Chrome and Safari are working perfectly.

When you get this for virtually all secure sites, the problem is usually as follows:

(1) error of date, time, or time zone who throw checks validity of the certificates of your system. Sometimes allowing to use a timesource on the internet, the computers can introduce this problem.

(2) not be set up to work with your security software that intercepts and filter secure connections from Firefox. Products with this feature include Avast, BitDefender, Bullguard, ESET and Kaspersky. AVG LinkScanner / SurfShield can cause this error on search sites.

If you have one of these specific security products: Check this technical support article: How do I resolve the error 'SEC_ERROR_UNKNOWN_ISSUER' on the protected pages code.

(3) 10 Windows, Firefox does not put in place to work with Microsoft's parental parental control software. (To test by turning it off, see: http://windows.microsoft.com/en-us/wi.../turn-off-microsoft-family-settings)

(4) malicious software on your system for the interception of secure connections.

If none of those ring a Bell:

You can inspect a specimen of the certificate to see if that points to the culprit. If you want to try it now, here is how I suggest to start:

Load my test page at: https://jeffersonscher.com/res/jstest.php

You will probably get an error page. Expand the "Advanced" button, and then look for a button Add Exception.

Note: You don't need to complete the process of adding an exception - I suggest not adding one until we know that it is not a malware issue - but you can use the dialog box to display the information that makes Firefox suspicious.

Click Add exceptions and exception certificate dialog box should open.

Click on the button display. If the view is not enabled, try first the button get certificate.

This should display the certificate. Look at the section "issued by" and the Details, the hierarchy of certificates tab. What do you see here? I have attached a screenshot for comparison of screen.

Tags: Firefox

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