neomutt as my mail client, in Gnome Terminal 3.28.2 on Ubuntu 18.04. I'd like to open inline URLs in a Firefox Private Window by default -- right now they open a new tab in an existing, non-Private Window.
I can do this in my mailcap with the -private-window flag, but that won't work for just selecting "open link" from the gnome-terminal context menu.
There's a Mozilla support thread from an OSX user asking how to do this globally and the answer appears to be that you can't, but I'm on Ubuntu and tbh only need this to work from
neomutt running in a terminal.