Hi

This support article should help:

https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect

No good

None of the error message in the link response correspond with the error message i am receiving which is set out below. Also I get this error every time I use firefox for any website including firefox. I do not get the error accessing the same websites on microsoft edge

Here is the error i am getting.........

Secure Connection Failed

An error occurred during a connection to support.mozilla.org. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_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.

" An error occurred during a connection to support.mozilla.org. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR"

Is this just for the mozilla site, I see no reason this would happen in Firefox for other sites, not that I see one for mozilla.org. Does the browser really direct a failed connection to mozilla ???

What have you tried? There seems to be a lot on this error

https://duckduckgo.com/?q=PR_CONNECT_RESET_ERROR&ia=web