Secure websites are coming up not secure and not loading
Anything related to google is not working, even the search engine. When I try to go to my gmail account, the search bar says it's not secure. Also, there are a couple of other websites that are secure and it's saying they are not. I use 3 other browsers besides Firefox and they are all working fine. Please help!
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Please explain the problem in detail. What happens? What is/are the exact error message(s) ?
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-firefox-did-not-connect
https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors
This is the message I'm getting:
Secure Connection Failed
An error occurred during a connection to mail.google.com. PR_END_OF_FILE_ERROR
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem.
You can try to disable DNS over HTTPS.
- https://support.mozilla.org/en-US/kb/firefox-dns-over-https
- https://support.mozilla.org/en-US/kb/dns-over-https-doh-faqs
You can check the connection settings.
- Settings -> General -> Network: Connection -> Settings
If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.
See "Firefox connection settings":
- https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors
- 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
See also: