fixes bug 1263146 - tear-out doesn't always work (#669)
fixes bug 1263146 - tear-out doesn't always work (#669)
blossomica/airmozilla,mozilla/airmozilla,mozilla/airmozilla,blossomica/airmozilla,mozilla/airmozilla,mozilla/airmozilla,blossomica/airmozilla,blossomica/airmozilla