diff --git a/common/content/buffer.js b/common/content/buffer.js
index e6a15cd7..bfd0b356 100644
--- a/common/content/buffer.js
+++ b/common/content/buffer.js
@@ -172,24 +172,8 @@ function Buffer() //{{{
         "Show current website with a minimal style sheet to make it easily accessible",
         "boolean", false,
         {
-            setter: function (value)
-            {
-                try
-                {
-                    window.getMarkupDocumentViewer().authorStyleDisabled = value;
-                }
-                catch (e) {}
-
-                return value;
-            },
-            getter: function ()
-            {
-                try
-                {
-                    return window.getMarkupDocumentViewer().authorStyleDisabled;
-                }
-                catch (e) {}
-            }
+            setter: function (value) getBrowser().markupDocumentViewer.authorStyleDisabled = value,
+            getter: function () getBrowser().markupDocumentViewer.authorStyleDisabled
         });
 
     /////////////////////////////////////////////////////////////////////////////}}}
diff --git a/common/content/hints.js b/common/content/hints.js
index c9b8957f..ca55ac9a 100644
--- a/common/content/hints.js
+++ b/common/content/hints.js
@@ -254,7 +254,7 @@ function Hints() //{{{
         // 'usermode' appropriately? We're generally not very well integrated
         // into FF so having menu items toggle Vimperator options may be
         // confusing. --djk
-        if (window.getMarkupDocumentViewer().authorStyleDisabled)
+        if (getBrowser().markupDocumentViewer.authorStyleDisabled)
         {
             let css = [];
             // FIXME: Broken for imgspans.