Can't connect to simulator and console

When I try to view the simulator or the console, an error pops up on their respective screens saying it failed to connect to the server.
I’m using Remote Backend in Firefox.

Hi @JuanFe , in remote backend the Gazebo viewer and the console viewer require from the browser “Allow Insecure Content” option to be activated. They are both implemented through http, not https and that’s why that option should be active.