diff --git a/functions.js b/functions.js
index 8b4945ed..b9096706 100644
--- a/functions.js
+++ b/functions.js
@@ -15,9 +15,9 @@ Array.prototype.remove = function(s) {
 /* create console.log if it doesn't exist */
 
 if (!window.console) console = {};
-console.log = console.log || function(msg) { debug(msg); };
-console.warn = console.warn || function(msg) { debug(msg); };
-console.error = console.error || function(msg) { debug(msg); };
+console.log = console.log || function(msg) { };
+console.warn = console.warn || function(msg) { };
+console.error = console.error || function(msg) { };
 
 function exception_error(location, e, ext_info) {
 	var msg = format_exception_error(location, e);
@@ -1356,28 +1356,6 @@ function filterCR(e, f)
 	}
 }
 
-var debug_last_class = "even";
-
-function debug(msg) {
-
-	if (debug_last_class == "even") {
-		debug_last_class = "odd";
-	} else {
-		debug_last_class = "even";
-	}
-
-	var c = $('debug_output');
-	if (c && Element.visible(c)) {
-		while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
-			c.removeChild(c.lastChild);
-		}
-	
-		var ts = make_timestamp();
-		c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " + 
-			msg + "</li>" + c.innerHTML;
-	}
-}
-
 function getInitParam(key) {
 	return init_params[key];
 }
diff --git a/prefs.js b/prefs.js
index 33887b15..c2f9d65c 100644
--- a/prefs.js
+++ b/prefs.js
@@ -1150,11 +1150,6 @@ function init() {
 
 	try {
 	
-		if (getURLParam('debug')) {
-			Element.show("debug_output");
-			console.log('debug mode activated');
-		}
-
 		loading_set_progress(30);
 
 		var query = "?op=rpc&subop=sanityCheck";
@@ -1353,16 +1348,6 @@ function pref_hotkey_handler(e) {
 
 		if (!hotkey_prefix) {
 
-			if (keycode == 68 && shift_key) { // d
-				if (!Element.visible("debug_output")) {
-					Element.show("debug_output");
-					console.log('debug mode activated');
-				} else {
-					Element.hide("debug_output");
-				}
-				return;
-			}
-	
 			if ((keycode == 191 || keychar == '?') && shift_key) { // ?
 				if (!Element.visible("hotkey_help_overlay")) {
 					//Element.show("hotkey_help_overlay");
diff --git a/prefs.php b/prefs.php
index c0aad8a6..41608969 100644
--- a/prefs.php
+++ b/prefs.php
@@ -83,8 +83,6 @@
 
 <img id="piggie" src="images/piggie.png" style="display : none" alt="piggie"/>
 
-<ul id="debug_output" style='display : none'><li>&nbsp;</li></ul>
-
 <div id="prefHeader">
 	<div class="topLinks">
 		<?php if (!SINGLE_USER_MODE) { ?>
@@ -133,7 +131,6 @@
 
 <div id="notify" class="notify"><span id="notify_body">&nbsp;</span></div>
 <div id="infoBoxShadow"><div id="infoBox">BAH</div></div>
-
 <div id="cmdline" style="display : none"></div>
 
 <div id="errorBoxShadow" style="display : none">
diff --git a/tt-rss.css b/tt-rss.css
index ba7bbe57..7f798a53 100644
--- a/tt-rss.css
+++ b/tt-rss.css
@@ -1095,27 +1095,6 @@ a.cdmToggleLink:hover {
 	border-width : 0px;
 }
 
-#debug_output {
-	position : absolute;
-	width : 400px;
-	height : 200px;
-	right : 20px;
-	bottom : 20px;
-	z-index : 999;
-	background-color : white;
-	border : 1px solid #c0c0c0;
-	overflow : auto;
-	margin : 0px;
-	padding : 0px;
-	list-style-type : none;
-}
-
-#debug_output li {
-	margin : 0px;
-	padding : 0px;
-	font-size : 11px;
-}
-
 #dialog_overlay {
 	left : 0;
 	top : 0;
diff --git a/tt-rss.js b/tt-rss.js
index 6dd53c8b..9aaa4c52 100644
--- a/tt-rss.js
+++ b/tt-rss.js
@@ -272,11 +272,6 @@ function init() {
 		if (!genericSanityCheck()) 
 			return;
 
-		if (getURLParam('debug')) {
-			Element.show("debug_output");
-			console.log('debug mode activated');
-		}
-
 		var params = "&ua=" + param_escape(navigator.userAgent);
 
 		loading_set_progress(30);
@@ -935,17 +930,6 @@ function hotkey_handler(e) {
 
 		if (!hotkey_prefix) {
 
-			if (keycode == 68 && shift_key) { // d
-				if (!Element.visible("debug_output")) {
-					Element.show("debug_output");
-					console.log('debug mode activated');
-				} else {
-					Element.hide("debug_output");
-				}
-	
-				return;
-			}
-	
 			if ((keycode == 191 || keychar == '?') && shift_key) { // ?
 				if (!Element.visible("hotkey_help_overlay")) {
 					//Element.show("hotkey_help_overlay");
diff --git a/tt-rss.php b/tt-rss.php
index bf685574..f41d4223 100644
--- a/tt-rss.php
+++ b/tt-rss.php
@@ -85,13 +85,8 @@
 </div>
 
 <div id="notify" class="notify"><span id="notify_body">&nbsp;</span></div>
-
 <div id="dialog_overlay" style="display : none"> </div>
-
-<ul id="debug_output" style='display : none'><li>&nbsp;</li></ul>
-
 <div id="infoBoxShadow" style="display : none"><div id="infoBox">&nbsp;</div></div>
-
 <div id="cmdline" style="display : none"></div>
 <div id="auxDlg" style="display : none"></div>