Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 4918)
+++ /CKEditor/trunk/CHANGES.html	(revision 4919)
@@ -49,4 +49,5 @@
 		<li><a href="http://dev.fckeditor.net/ticket/4724">#4724</a> : Using the mouse to insert a link in IE might create incorrect results.</li>
 		<li><a href="http://dev.fckeditor.net/ticket/4640">#4640</a> : Small optimizations for the fileBrowser plugin.</li>
+		<li><a href="http://dev.fckeditor.net/ticket/4964">#4964</a> : The BACKSPACE key positioning was not correct in some cases with Firefox.</li>
 	</ul>
 	<h3>
Index: /CKEditor/trunk/_source/core/dom/element.js
===================================================================
--- /CKEditor/trunk/_source/core/dom/element.js	(revision 4918)
+++ /CKEditor/trunk/_source/core/dom/element.js	(revision 4919)
@@ -244,8 +244,11 @@
 			if ( !lastChild || !lastChild.is || !lastChild.is( 'br' ) )
 			{
-				this.append(
-					CKEDITOR.env.opera ?
+				var bogus = CKEDITOR.env.opera ?
 						this.getDocument().createText('') :
-						this.getDocument().createElement( 'br' ) );
+						this.getDocument().createElement( 'br' );
+
+				CKEDITOR.env.gecko && bogus.setAttribute( 'type', '_moz' );
+
+				this.append( bogus );
 			}
 		},