diff --git a/wp-admin/js/common.js b/wp-admin/js/common.js
index 24dca37ffa..08fb3921b5 100644
--- a/wp-admin/js/common.js
+++ b/wp-admin/js/common.js
@@ -236,7 +236,6 @@ showNotice = {
 adminMenu = {
 		
 	init : function() {
-		$('#adminmenu a').attr('tabindex', '10');
 		$('#adminmenu div.wp-menu-toggle').each( function() {
 			if ( $(this).siblings('.wp-submenu').length ) 
 				$(this).click(function(){ adminMenu.toggle( $(this).siblings('.wp-submenu') ); });
diff --git a/wp-admin/menu-header.php b/wp-admin/menu-header.php
index 5321a32b55..dc9935bef6 100644
--- a/wp-admin/menu-header.php
+++ b/wp-admin/menu-header.php
@@ -56,6 +56,7 @@ function _wp_menu_output( $menu, $submenu, $submenu_as_parent = true ) {
 			$class[] = $item[4];
 
 		$class = $class ? ' class="' . join( ' ', $class ) . '"' : '';
+		$tabindex = ' tabindex="1"';
 		$id = isset($item[5]) && ! empty($item[5]) ? ' id="' . $item[5] . '"' : '';
 		$img = '';
 		if ( isset($item[6]) && ! empty($item[6]) ) {
@@ -75,17 +76,17 @@ function _wp_menu_output( $menu, $submenu, $submenu_as_parent = true ) {
 			$menu_hook = get_plugin_page_hook($submenu[$item[2]][0][2], $item[2]);
 			if ( file_exists(WP_PLUGIN_DIR . "/{$submenu[$item[2]][0][2]}") || !empty($menu_hook)) {
 				$admin_is_parent = true;
-				echo "$img$toggle<a href='admin.php?page={$submenu[$item[2]][0][2]}'$class>{$item[0]}</a>";
+				echo "$img$toggle<a href='admin.php?page={$submenu[$item[2]][0][2]}'$class$tabindex>{$item[0]}</a>";
 			} else {
-				echo "\n\t$img$toggle<a href='{$submenu[$item[2]][0][2]}'$class>{$item[0]}</a>";
+				echo "\n\t$img$toggle<a href='{$submenu[$item[2]][0][2]}'$class$tabindex>{$item[0]}</a>";
 			}
 		} else if ( current_user_can($item[1]) ) {
 			$menu_hook = get_plugin_page_hook($item[2], 'admin.php');
 			if ( file_exists(WP_PLUGIN_DIR . "/{$item[2]}") || !empty($menu_hook) ) {
 				$admin_is_parent = true;
-				echo "\n\t$img$toggle<a href='admin.php?page={$item[2]}'$class>{$item[0]}</a>";
+				echo "\n\t$img$toggle<a href='admin.php?page={$item[2]}'$class$tabindex>{$item[0]}</a>";
 			} else {
-				echo "\n\t$img$toggle<a href='{$item[2]}'$class>{$item[0]}</a>";
+				echo "\n\t$img$toggle<a href='{$item[2]}'$class$tabindex>{$item[0]}</a>";
 			}
 		}
 
@@ -118,13 +119,13 @@ function _wp_menu_output( $menu, $submenu, $submenu_as_parent = true ) {
 					// If admin.php is the current page or if the parent exists as a file in the plugins or admin dir
 					$parent_exists = (!$admin_is_parent && file_exists(WP_PLUGIN_DIR . "/{$item[2]}") && !is_dir(WP_PLUGIN_DIR . "/{$item[2]}") ) || file_exists($item[2]);
 					if ( $parent_exists )
-						echo "<li$class><a href='{$item[2]}?page={$sub_item[2]}'$class>{$sub_item[0]}</a></li>";
+						echo "<li$class><a href='{$item[2]}?page={$sub_item[2]}'$class$tabindex>{$sub_item[0]}</a></li>";
 					elseif ( 'admin.php' == $pagenow || !$parent_exists )
-						echo "<li$class><a href='admin.php?page={$sub_item[2]}'$class>{$sub_item[0]}</a></li>";
+						echo "<li$class><a href='admin.php?page={$sub_item[2]}'$class$tabindex>{$sub_item[0]}</a></li>";
 					else
-						echo "<li$class><a href='{$item[2]}?page={$sub_item[2]}'$class>{$sub_item[0]}</a></li>";
+						echo "<li$class><a href='{$item[2]}?page={$sub_item[2]}'$class$tabindex>{$sub_item[0]}</a></li>";
 				} else {
-					echo "<li$class><a href='{$sub_item[2]}'$class>{$sub_item[0]}</a></li>";
+					echo "<li$class><a href='{$sub_item[2]}'$class$tabindex>{$sub_item[0]}</a></li>";
 				}
 			}
 			echo "</ul></div>";
diff --git a/wp-includes/general-template.php b/wp-includes/general-template.php
index ccb572ba0b..14f5c5f568 100644
--- a/wp-includes/general-template.php
+++ b/wp-includes/general-template.php
@@ -1528,18 +1528,19 @@ function the_editor($content, $id = 'content', $prev_id = 'title', $media_button
 	// <![CDATA[
 	edCanvas = document.getElementById('<?php echo $id; ?>');
 	<?php if ( user_can_richedit() && $prev_id ) { ?>
+	var dotabkey = true;
 	// If tinyMCE is defined.
 	if ( typeof tinyMCE != 'undefined' ) {
 		// This code is meant to allow tabbing from Title to Post (TinyMCE).
-		jQuery('#<?php echo $prev_id; ?>').keydown(function (e) {
+		jQuery('#<?php echo $prev_id; ?>')[jQuery.browser.opera ? 'keypress' : 'keydown'](function (e) {
 			if (e.which == 9 && !e.shiftKey && !e.controlKey && !e.altKey) {
 				if ( (jQuery("#post_ID").val() < 1) && (jQuery("#title").val().length > 0) ) { autosave(); }
-				if ( tinyMCE.activeEditor && ! tinyMCE.activeEditor.isHidden() ) {
-					tinyMCE.activeEditor.focus();
+				if ( tinyMCE.activeEditor && ! tinyMCE.activeEditor.isHidden() && dotabkey ) {
 					e.preventDefault();
+					dotabkey = false;
+					tinyMCE.activeEditor.focus();
 					return false;
 				}
-				return;
 			}
 		});
 	}