FYI, gnome-gmail-1.7.2-1ubuntu3, in ppa:daves/daves, has the fix that adds GNOME Gmail back into the Preferred Applications selection list. Per bug #729357, the problem was the missing x-scheme-handler mimetype in the desktop file.
https://launchpad.net/~daves/+archive/daves -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/708382 Title: cannot create "custom" preferred applications -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs