When connecting to my on-premises SSL linux installation of ScreenConnect, Firefox throws an error:
Secure Connection Failed - Error code: SSL_ERROR_RX_MALFORMED_SERVER_HELLO.
The Chrome, IE11 and Edge work fine. I am using Screenconnect version 6.6.18120.6697, Firefox 61.01 on Windows 10 1803. The server is working with no issues.
Firefox doesn't seem to even download the certificate. The page info box shows no details and the view certificate button doesn't work. The only tag shown is Content-Security-Policy default-src chrome.
Connecting to Webmin on the same server using SSL works as expected in Firefox.
Customer support service by UserEcho