Index: wp-includes/class-wp-editor.php
===================================================================
--- wp-includes/class-wp-editor.php	(revision 21920)
+++ wp-includes/class-wp-editor.php	(working copy)
@@ -771,10 +771,10 @@
 		<div id="link-options">
 			<p class="howto"><?php _e( 'Enter the destination URL' ); ?></p>
 			<div>
-				<label><span><?php _e( 'URL' ); ?></span><input id="url-field" type="text" name="href" /></label>
+				<label><span><?php _e( 'URL' ); ?></span><input id="url-field" type="text" name="href" autocomplete="off" /></label>
 			</div>
 			<div>
-				<label><span><?php _e( 'Title' ); ?></span><input id="link-title-field" type="text" name="linktitle" /></label>
+				<label><span><?php _e( 'Title' ); ?></span><input id="link-title-field" type="text" name="linktitle" autocomplete="off" /></label>
 			</div>
 			<div class="link-target">
 				<label><input type="checkbox" id="link-target-checkbox" /> <?php _e( 'Open link in a new window/tab' ); ?></label>