$OpenBSD$

index 498879a..c9ad48c 100644
--- browser/devtools/styleeditor/test/head.js.orig	Fri Feb 20 15:40:36 2015
+++ browser/devtools/styleeditor/test/head.js	Fri Feb 20 15:40:36 2015
@@ -33,10 +33,13 @@ function asyncTest(generator) {
   return () => Task.spawn(generator).then(null, ok.bind(null, false)).then(finish);
 }
 
-function cleanup()
+function* cleanup()
 {
   gPanelWindow = null;
   while (gBrowser.tabs.length > 1) {
+    let target = TargetFactory.forTab(gBrowser.selectedTab);
+    yield gDevTools.closeToolbox(target);
+
     gBrowser.removeCurrentTab();
   }
 }