<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<p>As of a few hours ago, you'll need to add a new flag to your
mozconfig, or Thunderbird will think it is Firefox in a number of
places. This is the line to add:<br>
<p>This change was brought to you by <a moz-do-not-send="true"
1657954</a> on mozilla-central, and <a moz-do-not-send="true"
1658682</a> that I followed it up with. I think that is all that
is required – our builds and tests are running again – but if
there are any further issues then the latter bug is the place to