Is it possible to stop Mafia from opening a browser window on login?

[rendar55]

Is it possible to stop Mafia from opening a browser window on login? I usually don't need my Firefox window to open, and this would be an extremely minor QoL improvement for me.

 

[philmasterplus]

I'm on phone so I can't check, but go to Preferences > Look & Feel > Main Interface and drag-and-drop the "Relay Browser" entry to "Startup in Tabs". Mafia will then start the Relay Browser in the background instead of launching a web browser.

Edit: Fixed instructions

 

[rendar55]

I ended up dragging it from "Start up as Window" to "Complete List" and it stopped it from opening altogether. Exactly what I was looking for, thanks!