A mailto handler should be included when you install prism-google-mail, though, which will then show up as an option in Preferred Applications.
Another one could exist that just pipes the Gmail compose URL into xdg-open, which will call Gmail in your default browser, but that would be part of some other package, like firefox-gnome-support.
A mailto handler should be included when you install prism-google-mail, though, which will then show up as an option in Preferred Applications.
Another one could exist that just pipes the Gmail compose URL into xdg-open, which will call Gmail in your default browser, but that would be part of some other package, like firefox- gnome-support.