MQTT client connection fail in firefox

[ghost]

I try to connect with websockets to my broker (mosquitto). This works in Chrome (and in Edge), but in Firefox I get following error:

Firefox can’t establish a connection to the server at ws://:/ws.

Then, the onFailure callback gets called with this parameter: Object { invocationContext: undefined, errorCode: 7, errorMessage: "AMQJS0007E Socket error:undefined." }

[jpwsutton]

Hi @ramyalathaseethala, Is the connection to the broker or the web page being served over HTTPS? We have seen issues in the past where Firefox is very strict with mixed content and this could be related..

[tyler-suderman-kr]

I'm having the same issue here and am connecting over HTTP. Thanks for any help you can provide.