Index: /CKEditor/trunk/_source/plugins/editingblock/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/editingblock/plugin.js	(revision 3342)
+++ /CKEditor/trunk/_source/plugins/editingblock/plugin.js	(revision 3343)
@@ -97,5 +97,18 @@
 
 					// Grab editor focus if the editor container is focused. (#3104)
-					editor.container.on( 'focus', function()
+					var focusGrabber = editor.container;
+
+					// Safari 3 can't handle tabindex in all elements, so we do
+					// a trick to make it move the focus to the editor on TAB.
+					if ( CKEDITOR.env.webkit && CKEDITOR.env.version < 528 )
+					{
+						var tabIndex = editor.config.tabIndex || editor.element.getAttribute( 'tabindex' ) || 0;
+						focusGrabber = focusGrabber.append( CKEDITOR.dom.element.createFromHtml( 
+							'<input' +
+								' tabindex="' + tabIndex + '"' +
+								' style="position:absolute; left:-10000">' ) );
+					}
+
+					focusGrabber.on( 'focus', function()
 						{
 							editor.focus();