Web search; https://www.bing.com/search?q=PR_CONNECT_RESET_ERROR ''This simply means, that the peer or some middlebox in between (firewall) is terminating the connection.'' Web search: https://www.bing.com/search?q=PR_CONNECT_ABORTED_ERROR https://appuals.com/pr-connect-reset-error/ The PR_CONNECT_RESET_ERROR issue is encountered when the user tries to use Mozilla Firefox to connect to a website server with the HTTPS protocol but the request gets denied. This error message essentially means that the peer or some middlebox in between (most likely a firewall) is terminating the connection forcibly.