[Bug 699922]

[Mkmelin+mozilla]

No that doesn't help.
I see the same thing for web notifications in Firefox, so bug 1450036 is related (newmailalert.js is kind of a fork of the same code)

-- 
You received this bug notification because you are a member of Mozilla
Bugs, which is subscribed to Mozilla Thunderbird.
https://bugs.launchpad.net/bugs/699922

Title:
  Thunderbird displays notification on wrong monitor

To manage notifications about this bug go to:
https://bugs.launchpad.net/thunderbird/+bug/699922/+subscriptions