[Bug 711305]

[Toddandmargo-n]

This is currently not Thunderbird's problem.  This is Firefox's problem.
see

Firefox file-> email link regression: Thunderbird is already running
https://bugzilla.mozilla.org/show_bug.cgi?id=1933006

Please tab this bug report as a duplicate of the above

-- 
You received this bug notification because you are a member of Mozilla
Bugs, which is subscribed to thunderbird in Ubuntu.
https://bugs.launchpad.net/bugs/711305

Title:
  Thunderbird is already running, but is not responding. To open a new
  window, you must first close the existing Thunderbird process, or
  restart your system. Error received when clicking a mailto link in
  firefox.

To manage notifications about this bug go to:
https://bugs.launchpad.net/thunderbird/+bug/711305/+subscriptions