diff --git a/content/treestyletab/hacks.js b/content/treestyletab/hacks.js
index 8ac5c51a..176c6fb6 100644
--- a/content/treestyletab/hacks.js
+++ b/content/treestyletab/hacks.js
@@ -932,6 +932,36 @@ TreeStyleTabService.overrideExtensionsOnInitAfter = function() {
 		}
 	}
 
+	// Tabberwocky
+	// https://addons.mozilla.org/firefox/addon/14439
+	if ('multirow' in window &&
+		'updateMultiRowTabs' in multirow) {
+		eval('multirow.updateMultiRowTabs = '+
+			multirow.updateMultiRowTabs.toSource().replace(
+				'gBrowser.mPrefs.getBoolPref("tabberwocky.multirow")',
+				'$& && !gBrowser.treeStyleTab.isVertical'
+			)
+		);
+		window.setTimeout('multirow.updateMultiRowTabs();', 0);
+	}
+	if ('tabberwocky' in window) {
+		if ('openSelectedLinks' in tabberwocky) {
+			eval('tabberwocky.openSelectedLinks = '+
+				tabberwocky.openSelectedLinks.toSource().replace(
+					'links.forEach(',
+					<![CDATA[
+						TreeStyleTabService.readyToOpenChildTab(aFrame, true)
+					$&]]>
+				).replace(
+					/(\}\)?)$/,
+					<![CDATA[
+						TreeStyleTabService.stopToOpenChildTab(aFrame)
+					$1]]>
+				)
+			);
+		}
+	}
+
 	window.setTimeout(function(aSelf) {
 		aSelf.overrideExtensionsDelayed();
 	}, 0, this);