diff --git a/functions.php b/functions.php
index 672d9ef1d..369a3bcf7 100644
--- a/functions.php
+++ b/functions.php
@@ -1909,14 +1909,6 @@
 	function login_sequence($link, $mobile = false) {
 		if (!SINGLE_USER_MODE) {
 
-			if (defined('_DEBUG_USER_SWITCH') && $_SESSION["uid"]) {
-				$swu = db_escape_string($_REQUEST["swu"]);
-				if ($swu) {
-					$_SESSION["prefs_cache"] = false;
-					return authenticate_user($link, $swu, null, true);
-				}
-			}
-
 			$login_action = $_POST["login_action"];
 
 			# try to authenticate user if called from login form			
diff --git a/prefs.php b/prefs.php
index 8a0b5237a..656bdaf19 100644
--- a/prefs.php
+++ b/prefs.php
@@ -149,16 +149,6 @@
 <div id="dialog_overlay" style="display : none"> </div>
 
 <div id="prefFooter">
-	<?php if (defined('_DEBUG_USER_SWITCH')) { ?>
-		<select id="userSwitch" onchange="userSwitch()">
-		<?php 
-			foreach (array('admin', 'fox', 'test') as $u) {
-				$op_sel = ($u == $_SESSION["name"]) ? "selected" : "";
-				print "<option $op_sel>$u</option>";
-			}
-		?>
-		</select>
-	<?php } ?>
 	<a href="http://tt-rss.org/">Tiny Tiny RSS</a>
 	<?php if (!defined('HIDE_VERSION')) { ?>
 		 v<?php echo VERSION ?> 
diff --git a/tt-rss.php b/tt-rss.php
index bf5575b95..0cd784ee0 100644
--- a/tt-rss.php
+++ b/tt-rss.php
@@ -254,16 +254,6 @@
 <?php } ?>
 
 <div id="footer">
-	<?php if (defined('_DEBUG_USER_SWITCH')) { ?>
-		<select id="userSwitch" onchange="userSwitch()">
-		<?php 
-			foreach (array('admin', 'fox', 'test') as $u) {
-				$op_sel = ($u == $_SESSION["name"]) ? "selected" : "";
-				print "<option $op_sel>$u</option>";
-			}
-		?>
-		</select>
-	<?php } ?>
 	<a href="http://tt-rss.org/">Tiny Tiny RSS</a>
 	<?php if (!defined('HIDE_VERSION')) { ?>
 		 v<?php echo VERSION ?>