Index: wp-admin/includes/widgets.php
===================================================================
--- wp-admin/includes/widgets.php	(revision 21309)
+++ wp-admin/includes/widgets.php	(working copy)
@@ -179,7 +179,10 @@
 	<div class="widget-top">
 	<div class="widget-title-action">
 		<a class="widget-action hide-if-no-js" href="#available-widgets"></a>
-		<a class="widget-control-edit hide-if-js" href="<?php echo esc_url( add_query_arg( $query_arg ) ); ?>"><span class="edit"><?php _e('Edit'); ?></span><span class="add"><?php _e('Add'); ?></span></a>
+		<a class="widget-control-edit hide-if-js" href="<?php echo esc_url( add_query_arg( $query_arg ) ); ?>">
+			<span class="edit"><?php _e( 'Edit' ); ?><legend class="screen-reader-text"><span><?php printf( __( 'Edit %s' ), $widget_title ); ?></span></legend></span>
+			<span class="add"><?php _e( 'Add' ); ?><legend class="screen-reader-text"><span><?php printf( __( 'Add %s' ), $widget_title ); ?></span></legend></span>
+		</a>
 	</div>
 	<div class="widget-title"><h4><?php echo $widget_title ?><span class="in-widget-title"></span></h4></div>
 	</div>