long xpi filename can push "Cancel" button off screen r=ben git-svn-id: svn://10.0.0.236/trunk@146490 18797224-902f-48f8-a5cc-f745e15eee43
long xpi filename can push "Cancel" button off screen r=ben git-svn-id: svn://10.0.0.236/trunk@146490 18797224-902f-48f8-a5cc-f745e15eee43