Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 6582)
+++ /CKEditor/trunk/CHANGES.html	(revision 6583)
@@ -84,4 +84,5 @@
 		<li><a href="http://dev.ckeditor.com/ticket/7113">#7113</a> : [Webkit]Undesired document scroll on click after scrolling.</li>
 		<li><a href="http://dev.ckeditor.com/ticket/6491">#6491</a> : Undesired image dialog dimension lock reset on url change.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/7284">#7284</a> : [FF Quirks] Maximize now works correctly.</li>
 		<li>Updated the following language files:<ul>
 			<li><a href="http://dev.ckeditor.com/ticket/7124">#7124</a> : Czech;</li>
Index: /CKEditor/trunk/_source/plugins/maximize/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/maximize/plugin.js	(revision 6582)
+++ /CKEditor/trunk/_source/plugins/maximize/plugin.js	(revision 6583)
@@ -204,5 +204,5 @@
 							mainDocument.getDocumentElement().setStyles( styles );
 							!CKEDITOR.env.gecko && mainDocument.getDocumentElement().setStyle( 'position', 'fixed' );
-							mainDocument.getBody().setStyles( styles );
+							!( CKEDITOR.env.gecko && CKEDITOR.env.quirks ) && mainDocument.getBody().setStyles( styles );
 
 							// Scroll to the top left (IE needs some time for it - #4923).
@@ -212,5 +212,6 @@
 
 							// Resize and move to top left.
-							container.setStyle( 'position', 'absolute' );
+							// Special treatment for FF Quirks (#7284)
+							container.setStyle( 'position', CKEDITOR.env.gecko && CKEDITOR.env.quirks ? 'fixed' : 'absolute' );
 							container.$.offsetLeft;			// SAFARI BUG: See #2066.
 							container.setStyles(