Thanks to Stephen Walker for the patch. git-svn-id: svn://10.0.0.236/trunk@143318 18797224-902f-48f8-a5cc-f745e15eee43
(i.e. middle clicking on links were causing thunderbird to try to load navigator.xul because of this JS) git-svn-id: svn://10.0.0.236/trunk@142597 18797224-902f-48f8-a5cc-f745e15eee43