Firefox will not open any website.
Last week, it was a few sites and today, it is zero websites. I've already tried help as listed online but it's not working. Please assist.
All Replies (3)
Please explain the problem in detail. What happens? Error messages?
About 2 weeks ago, a few websites would not open when I tried to access a link with Firefox as the set browser to open via the site. I brushed this off as I probably shouldn't spend work time reading mildly related articles. Yesterday, I was unable to use components of my web based work system and I'm unable to access Google, Comcast, Gmail...and the list goes on and on. I investigated via Chrome which does not work with all components of my system either and is just not my preferred browser. I found a few help options including reinstalling Firefox 56.0.2 and something about config.whatever and look for bolded words. The re-installation did not solve the issue and nothing from the queried list was in bold. And, now - I only see the following error message:
Your connection is not secure
The owner of www.google.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.
This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate.
Learn more…
Report errors like this to help Mozilla identify and block malicious sites
That means there is a problem with the website certificates.
There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own.
https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites
https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message
https://support.mozilla.org/en-US/kb/connection-untrusted-error-message
Websites don't load - troubleshoot and fix error messages
http://kb.mozillazine.org/Error_loading_websites
- uses an invalid security certificate SSL_ERROR_BAD_CERT_DOMAIN
- configured their website improperly
How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER