Index: _whatsnew.html
===================================================================
--- _whatsnew.html	(revision 1728)
+++ _whatsnew.html	(working copy)
@@ -92,6 +92,9 @@
 			opened.</li>
 		<li>[<a target="_blank" href="http://dev.fckeditor.net/ticket/2024">#2024</a>] Fixed
 			JavaScript error in IE when the user tries to open dialogs in Source mode.</li>
+		<li>[<a target="_blank" href="http://dev.fckeditor.net/ticket/2002">#2002</a>] Fixed
+			the issue where the maximize editor button does not vertically expand the editing
+			area in Firefox.</li>
 	</ul>
 	<h3>
 		Version 2.6 Beta 1</h3>
Index: editor/fckeditor.html
===================================================================
--- editor/fckeditor.html	(revision 1728)
+++ editor/fckeditor.html	(working copy)
@@ -340,8 +340,9 @@
 	window.onresize = function( e )
 	{
 		// Running in Chrome makes the window receive the event including subframes.
-		// we care only about this window. Ticket #1642
-		if ( e && e.originalTarget !== document )
+		// we care only about this window. Ticket #1642.
+		// #2002: The originalTarget from the event can be the current document, the window, or the editing area.
+		if ( e && e.originalTarget !== document && e.originalTarget !== window && e.originalTarget.ownerDocument != document )
 			return ;
 
 		var oCell = document.getElementById( 'xEditingArea' ) ;
@@ -349,8 +350,8 @@
 		var eInnerElement = oCell.firstChild ;
 		if ( eInnerElement )
 		{
-			eInnerElement.style.height = 0 ;
-			eInnerElement.style.height = oCell.scrollHeight - 2 ;
+			eInnerElement.style.height = '0px' ;
+			eInnerElement.style.height = ( oCell.scrollHeight - 2 ) + 'px' ;
 		}
 	}
 }