Configure e-mailclient via kcmshell4 componentchooser to point to /home/a/bin/tb type a@b.com Hold shift and press right mouse button while holding the mouse over a@b such that an underline is visible. Click 'Send Email to' I now got a response that it cannot find /usr/bin/thunderbird. Additionally, I don't get any option to set it in any other way. It should have said that it cannot find /home/a/bin/tb or it should have found /home/a/bin/tb. It might be that the componentchooser component is not working, but it is konsole which depends on this component for opening links. Qt: 4.8.6 KDE Development Platform: 4.13.3 Konsole: 2.13.2 OS: Kubuntu 14.04 LTS