just installed neoload 5.1 on my RHEL linux box. why do I get ssl_error_rx_record_too_long error when recording (using firefox)
I was not able to reproduce your issue. This error is a generic error, it could be due to a client certificate, wrong SSL protocol, or SNI issue.
The best would be to manually create that server/URL in NeoLoad and run a check virtual user. Normally you should get a Network-01 error with a specific error detail that should lead us to the root cause.