From c96c4047de477e92deb386809c7f121d15b60352 Mon Sep 17 00:00:00 2001
From: piro <piro@599a83e7-65a4-db11-8015-0010dcdd6dc2>
Date: Thu, 22 Apr 2010 08:24:36 +0000
Subject: [PATCH] =?UTF-8?q?Minefield=203.7a5pre=E3=81=A7=E4=B8=80=E9=83=A8?=
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MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@6606 599a83e7-65a4-db11-8015-0010dcdd6dc2
---
 modules/utils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/utils.js b/modules/utils.js
index 13785723..c5bca8a3 100644
--- a/modules/utils.js
+++ b/modules/utils.js
@@ -851,7 +851,7 @@ var TreeStyleTabUtils = {
 				aTabBrowserChild,
 				Ci.nsIDOMXPathResult.FIRST_ORDERED_NODE_TYPE
 			).singleNodeValue;
-		if (popup && 'TabContextMenu' in window)
+		if (popup && 'TabContextMenu' in aTabBrowserChild.ownerDocument.defaultView)
 			return this.getTabBrowserFromChild(TabContextMenu.contextTab);
 
 		var b = this.evaluateXPath(