Index: CKEditor/trunk/CHANGES.html
===================================================================
--- CKEditor/trunk/CHANGES.html	(revision 7447)
+++ CKEditor/trunk/CHANGES.html	(revision 7448)
@@ -86,4 +86,5 @@
 		<li><a href="http://dev.ckeditor.com/ticket/8400">#8400</a> : [IE] Fix script error when closing cellProperties dialog if table cell text is selected.</li>
 		<li><a href="http://dev.ckeditor.com/ticket/8248">#8248</a> : [IE8] Fix BACKSPACE/DEL keys when working at the start/end of list items.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/8855">#8855</a> : [Chrome] Fix popup window size in Chrome 18.</li>
 	</ul>
 	<h3>
Index: CKEditor/trunk/_source/plugins/popup/plugin.js
===================================================================
--- CKEditor/trunk/_source/plugins/popup/plugin.js	(revision 7447)
+++ CKEditor/trunk/_source/plugins/popup/plugin.js	(revision 7448)
@@ -50,6 +50,11 @@
 		try
 		{
-			popupWindow.moveTo( left, top );
-			popupWindow.resizeTo( width, height );
+			// Chrome 18 is problematic, but it's not really needed here (#8855).
+			var ua = navigator.userAgent.toLowerCase();
+			if ( ua.indexOf( ' chrome/18' ) == -1 )
+			{
+				popupWindow.moveTo( left, top );
+				popupWindow.resizeTo( width, height );
+			}
 			popupWindow.focus();
 			popupWindow.location.href = url;