Comment # 1 on bug 1084603 from Ronnie Bailey

  I can confirm this bug as I originally reported it on Mozilla's bugzilla. 
  The folks at Mozilla cannot confirm the bug on other flavors of Linux nor on
Windows. The bug only seems to exist on various versions of SuSE products. 
   I use Tumbleweed. I have ended up allowing all remote content to be allowed
in Thunderbird for now, but of course that is never a good idea.