I cannot hear or see participant using Mozilla on my self hosted jitsi instance. On other browsers it works fine. I am using AWS ubuntu 18.04 LTS

I cannot hear or see participant using Mozilla on my self hosted jitsi instance. On other browsers it works fine. I am using AWS ubuntu 18.04 LTS

I am new to Jitsi urgent help will be much appreciated.
I have make the settings mentioned in sip.communicator file for NAT