Why do half the web pages I visit using Firefox version 45.0.1 for Windows 10 64-bit now open as text only or give me a "Connection Not Secure" message?
Since clicking a "Tune-up Firefox" button about six weeks ago, my Firefox browser has been nearly unusable. At least half the pages I visit display as text-only, even Mozilla support pages. Additionally, when I login to my Outlook email account, I receive the message "Your Connection Is Not Secure." I've uninstalled and re-installed three times, but the problem persists. My operating system is Windows 10 64-bit and the Firefox version I'm using is 45.0.1 for Windows 10 64-bit.
Any help or suggestions would be much appreciated. Firefox is my favorite browser but I've been forced to use Chrome since this started happening .. I don't like Chrome.
Thanks, all the best.
--David Reddig.
الحل المُختار
Hi David, the most common reason for this problem post-Refresh is that the Refresh broke the established trust between your Firefox and your security or parental control software by removing a settings file, but let me give you my whole spiel just in case.
When you get certificate errors for pretty much all secure sites, the problem usually is one of the following:
(1) Error in your system's date, time, or time zone, which throws off certificate validity checks. Sometimes allowing computers to use an internet-based time source can introduce this problem.
(2) Firefox not being set up to work with your security software that intercepts and filters secure connections. Products with this feature include Avast, BitDefender, Bullguard, ESET, and Kaspersky; AVG LinkScanner / SurfShield can cause this error on search sites.
(3) On Windows 10, Firefox not being set up to work with the parental control software Microsoft Family Safety. (To test by turning it off, see: http://windows.microsoft.com/en-us/wi.../turn-off-microsoft-family-settings)
(4) Malware on your system intercepting secure connections.
If you have any of those specific security products:
That would be the first thing to check. This support article will walk you through it: How to troubleshoot security error codes on secure websites.
If none of those ring a bell:
You could inspect a sample certificate to see whether that points to the culprit. If you want to try that now, here's how I suggest starting:
Load my test page at: https://jeffersonscher.com/res/jstest.php
You likely will get an error page. Expand the "Advanced" button and look for an Add Exception button.
Note: You don't need to complete the process of adding an exception -- I suggest not adding one until we know this isn't a malware issue -- but you can use the dialog to view the information that makes Firefox suspicious.
Click Add Exception, and the certificate exception dialog should open.
Click the View button. If View is not enabled, try the Get Certificate button first.
This should pop up the Certificate Viewer. Look at the "Issued by" section, and on the Details tab, the Certificate Hierarchy. What do you see there? I have attached a screen shot for comparison.
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الحل المُختار
Hi David, the most common reason for this problem post-Refresh is that the Refresh broke the established trust between your Firefox and your security or parental control software by removing a settings file, but let me give you my whole spiel just in case.
When you get certificate errors for pretty much all secure sites, the problem usually is one of the following:
(1) Error in your system's date, time, or time zone, which throws off certificate validity checks. Sometimes allowing computers to use an internet-based time source can introduce this problem.
(2) Firefox not being set up to work with your security software that intercepts and filters secure connections. Products with this feature include Avast, BitDefender, Bullguard, ESET, and Kaspersky; AVG LinkScanner / SurfShield can cause this error on search sites.
(3) On Windows 10, Firefox not being set up to work with the parental control software Microsoft Family Safety. (To test by turning it off, see: http://windows.microsoft.com/en-us/wi.../turn-off-microsoft-family-settings)
(4) Malware on your system intercepting secure connections.
If you have any of those specific security products:
That would be the first thing to check. This support article will walk you through it: How to troubleshoot security error codes on secure websites.
If none of those ring a bell:
You could inspect a sample certificate to see whether that points to the culprit. If you want to try that now, here's how I suggest starting:
Load my test page at: https://jeffersonscher.com/res/jstest.php
You likely will get an error page. Expand the "Advanced" button and look for an Add Exception button.
Note: You don't need to complete the process of adding an exception -- I suggest not adding one until we know this isn't a malware issue -- but you can use the dialog to view the information that makes Firefox suspicious.
Click Add Exception, and the certificate exception dialog should open.
Click the View button. If View is not enabled, try the Get Certificate button first.
This should pop up the Certificate Viewer. Look at the "Issued by" section, and on the Details tab, the Certificate Hierarchy. What do you see there? I have attached a screen shot for comparison.
Thank you so much, jscher2000. My antivirus is ESET and your tip did the trick. Every page I've gone to so far has opened normally.
You're a lifesaver. All the best,
--David