Setting Thunderbird to be the default mailto?

[conover@panix.com (John Conover)]

Which is the correct command used to set Thunderbird to be the default
mailto with a ~/.local/share/applications/Thunderbird.desktop file?

    xdg-mime default Thunderbird.desktop x-scheme-handler/mailto

or:

    xdg-settings set default-url-scheme-handler mailto Thunderbird.desktop

    Thanks,

    John

-- 

John Conover, conover@panix.com, http://www.johncon.com/