[Bug 25706] clicking on mailto link does not open thunderbird.

[Matt MacLeod]

Public bug report changed:
https://launchpad.net/malone/bugs/25706

Comment:
This is in fact configurable by going to System...Preferred Applications
and changing the mail reader.

HOWEVER, due to Bug 12097, just selecting Thunderbird doesn't actually
work. You have to select Thunderbird, then custom, then change "-mail"
to "-compose."