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Reinstalled firefox and get "connection not secure" for everything including mozilla.org

Posted

I am using a Mac OS X 10.11

Other browsers can connect to sites - only Firefox can't connect

I am using a Mac OS X 10.11 Other browsers can connect to sites - only Firefox can't connect

Modified by goette01

Additional System Details

Installed Plug-ins

none

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36 OPR/50.0.2762.67

More Information

FredMcD
  • Top 10 Contributor
4267 solutions 59840 answers
There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate. 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 http://kb.mozillazine.org/Error_loading_websites https://www.bing.com/search?q=web+site+access+denied