From 0be4723b9193bac6ec499878cc27f9e93d575057 Mon Sep 17 00:00:00 2001
From: Doug Kearns <dougkearns@gmail.com>
Date: Thu, 1 Jan 2009 21:37:27 +1100
Subject: [PATCH] Fix HTMLDocument guard clause in buffer.shiftFrameFocus.

---
 common/content/buffer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/content/buffer.js b/common/content/buffer.js
index 429818a6..3ebac019 100644
--- a/common/content/buffer.js
+++ b/common/content/buffer.js
@@ -1294,7 +1294,7 @@ function Buffer() //{{{
          */
         shiftFrameFocus: function (count, forward)
         {
-            if (!window.content.document instanceof HTMLDocument)
+            if (!(window.content.document instanceof HTMLDocument))
                 return;
 
             count = Math.max(count, 1);