Comment 4 for bug 11574

It seems that, when opening a network location from Nautilus, it opens it
through... Nautilus, while when you open it through the "Places" menu, it uses
gnome-open. And the problem seems to lie in the fact that gnome-open doesn't
have a handler for sftp links while it uses firefox for ftp links. More over,
this behaviour introduces an inconsistency because, if you open an FTP location
through Nautilus, it opens it in Nautilus, but if you open it from the "places"
menu, it opens in in Firefox (and there is no obvious way to change that).