Index: /FCKeditor/trunk/_whatsnew.html
===================================================================
--- /FCKeditor/trunk/_whatsnew.html	(revision 1450)
+++ /FCKeditor/trunk/_whatsnew.html	(revision 1451)
@@ -70,4 +70,6 @@
 		<li>[<a target="_blank" href="http://dev.fckeditor.net/ticket/1715">#1715</a>] The ShowDropDialog
 			is now enforced only when ForcePasteAsPlainText = true.</li>
+		<li>[<a target="_blank" href="http://dev.fckeditor.net/ticket/1336">#1336</a>] Sometimes
+			the autogrow plugin didn't work properly in Firefox.</li>
 	</ul>
 	<p>
Index: /FCKeditor/trunk/editor/plugins/autogrow/fckplugin.js
===================================================================
--- /FCKeditor/trunk/editor/plugins/autogrow/fckplugin.js	(revision 1450)
+++ /FCKeditor/trunk/editor/plugins/autogrow/fckplugin.js	(revision 1451)
@@ -64,4 +64,11 @@
 
 		window.frameElement.height = iMainFrameSize ;
+
+		// Gecko browsers use an onresize handler to update the innermost
+		// IFRAME's height. If the document is modified before the onresize
+		// is triggered, the plugin will miscalculate the new height. Thus,
+		// forcibly trigger onresize. #1336
+		if ( typeof window.onresize == 'function' )
+			window.onresize() ;
 	}
 }