From 0f22fc0682ce37e830a45f1584a208ed18e35d0b Mon Sep 17 00:00:00 2001
From: piro <piro@599a83e7-65a4-db11-8015-0010dcdd6dc2>
Date: Tue, 7 Jul 2009 01:15:13 +0000
Subject: [PATCH] =?UTF-8?q?=E3=83=80=E3=83=9F=E3=83=BC=E3=81=AE=E3=82=BF?=
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git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@4646 599a83e7-65a4-db11-8015-0010dcdd6dc2
---
 content/treestyletab/treestyletabbrowser.js | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/content/treestyletab/treestyletabbrowser.js b/content/treestyletab/treestyletabbrowser.js
index fb46ea4e..5bcc3c87 100644
--- a/content/treestyletab/treestyletabbrowser.js
+++ b/content/treestyletab/treestyletabbrowser.js
@@ -1496,7 +1496,7 @@ TreeStyleTabBrowser.prototype = {
 			while (ancestor = this.getParentTab(ancestor));
 			backupAttributes[this.kANCESTOR] = ancestors.join('|');
 
-			var shouldCloseParentTab = (
+			let shouldCloseParentTab = (
 					this.isGroupTab(parentTab) &&
 					this.getDescendantTabs(parentTab).length == 1
 				);
@@ -1507,10 +1507,15 @@ TreeStyleTabBrowser.prototype = {
 
 			if (shouldCloseParentTab) {
 				// when closing the last tab on Firefox 3.0
-				if (!this.getPref('browser.tabs.closeWindowWithLastTab') &&
-					this.getTabs(b).snapshotLength == 2)
-					b.addTab('about:blank');
-				b.removeTab(parentTab);
+				let shouldAddBlankTab = (
+						!this.getPref('browser.tabs.closeWindowWithLastTab') &&
+						this.getTabs(b).snapshotLength == 2
+					);
+				window.setTimeout(function() {
+					if (!parentTab.parentNode) return;
+					if (shouldAddBlankTab) b.addTab('about:blank');
+					b.removeTab(parentTab);
+				}, 0);
 			}
 		}
 		else if (!nextFocusedTab) {