diff --git wp-admin/css/wp-admin-rtl.dev.css wp-admin/css/wp-admin-rtl.dev.css
index 172b22e..48f9478 100644
--- wp-admin/css/wp-admin-rtl.dev.css
+++ wp-admin/css/wp-admin-rtl.dev.css
@@ -203,98 +203,6 @@ form.upgrade .hint {
 	margin: 1px 1px 1px 2px;
 }
 
-/* Distraction Free Writing mode
- * =Overlay Styles
--------------------------------------------------------------- */
-
-/* No RTL for now, this space intentionally left blank */
-
-/* =Overlay Body
--------------------------------------------------------------- */
-#wp-fullscreen-body {
-	right: 0;
-	left:auto;
-}
-
-#wp-fullscreen-tagline {
-	float: left;
-}
-
-/* =Top bar
--------------------------------------------------------------- */
-#fullscreen-topbar {
-	left:auto;
-	right: 0;
-}
-
-#wp-fullscreen-mode-bar,
-#wp-fullscreen-button-bar,
-#wp-fullscreen-close,
-#wp-fullscreen-count {
-	float: right;
-}
-
-#wp-fullscreen-save {
-	float: left;
-}
-
-#wp-fullscreen-save {
-	padding: 2px 5px 0 2px;
-}
-
-#wp-fullscreen-buttons > div {
-	float: right;
-}
-
-#wp-fullscreen-mode-bar {
-	padding: 1px 0 0 14px;
-}
-
-#wp-fullscreen-modes a {
-	float: right;
-	border-width: 1px 0 1px 1px;
-}
-
-#wp-fullscreen-modes a:first-child {
-	-webkit-border-top-left-radius: 0;
-	-webkit-border-top-right-radius: 3px;
-	-webkit-border-bottom-left-radius: 0;
-	-webkit-border-bottom-right-radius: 3px;
-	border-width: 1px;
-	border-top-left-radius: 0;
-	border-top-right-radius: 3px;
-	border-bottom-right-left: 0;
-	border-bottom-right-radius: 3px;
-}
-
-#wp-fullscreen-modes a:last-child {
-	-webkit-border-top-right-radius: 0;
-	-webkit-border-top-left-radius: 3px;
-	-webkit-border-bottom-right-radius: 0;
-	-webkit-border-bottom-left-radius: 3px;
-	border-top-right-radius: 0;
-	border-top-left-radius: 3px;
-	border-bottom-right-radius: 0;
-	border-bottom-left-radius: 3px;
-}
-
-#wp-fullscreen-save img,
-#wp-fullscreen-save span {
-	padding-right: 0;
-	padding-left: 4px;
-}
-
-/* =Thickbox Adjustments
--------------------------------------------------------------- */
-/* No RTL for now, this space intentionally left blank */
-
-
-/* =TinyMCE Adjustments
--------------------------------------------------------------- */
-/* No RTL for now, this space intentionally left blank */
-
-
-
 /*------------------------------------------------------------------------------
   6.0 - Admin Header
 ------------------------------------------------------------------------------*/
@@ -2490,4 +2398,4 @@ body.login.locale-he-il,
 .locale-he-il em {
 	font-style: normal;
 	font-weight: bold;
-}
\ No newline at end of file
+} 
diff --git wp-admin/css/wp-admin.dev.css wp-admin/css/wp-admin.dev.css
index f2d055d..98a1c79 100644
--- wp-admin/css/wp-admin.dev.css
+++ wp-admin/css/wp-admin.dev.css
@@ -630,53 +630,6 @@ div.error p {
 }
 
 
-/* =CSS 3 transitions
--------------------------------------------------------------- */
-
-.fade-1000,
-.fade-600,
-.fade-400,
-.fade-300 {
-	opacity: 0;
-	-moz-transition-property: opacity;
-	-webkit-transition-property: opacity;
-	-o-transition-property: opacity;
-	transition-property: opacity;
-}
-
-.fade-1000 {
-	-moz-transition-duration: 1s;
-	-webkit-transition-duration: 1s;
-	-o-transition-duration: 1s;
-	transition-duration: 1s;
-}
-
-.fade-600 {
-	-moz-transition-duration: 0.6s;
-	-webkit-transition-duration: 0.6s;
-	-o-transition-duration: 0.6s;
-	transition-duration: 0.6s;
-}
-
-.fade-400 {
-	-moz-transition-duration: 0.4s;
-	-webkit-transition-duration: 0.4s;
-	-o-transition-duration: 0.4s;
-	transition-duration: 0.4s;
-}
-
-.fade-300 {
-	-moz-transition-duration: 0.3s;
-	-webkit-transition-duration: 0.3s;
-	-o-transition-duration: 0.3s;
-	transition-duration: 0.3s;
-}
-
-.fade-trigger {
-	opacity: 1;
-}
-
-
 /*------------------------------------------------------------------------------
   1.0 - Text Styles
 ------------------------------------------------------------------------------*/
@@ -1126,261 +1079,6 @@ form.upgrade .hint {
 }
 
 
-/* Distraction Free Writing mode
- * =Overlay Styles
--------------------------------------------------------------- */
-.fullscreen-overlay {
-	z-index: 149999;
-	display: none;
-	position: fixed;
-	top: 0;
-	bottom: 0;
-	left: 0;
-	right: 0;
-	filter: inherit;
-}
-
-.fullscreen-active .fullscreen-overlay,
-.fullscreen-active #wp-fullscreen-body {
-	display: block;
-}
-
-.fullscreen-fader {
-	z-index: 200000;
-}
-
-.fullscreen-active .fullscreen-fader {
-	display: none;
-}
-
-/* =Overlay Body
--------------------------------------------------------------- */
-#wp-fullscreen-body {
-	width: 100%;
-	z-index: 150005;
-	display: none;
-	position: absolute;
-	top: 0;
-	left: 0;
-}
-
-#wp-fullscreen-wrap {
-	margin: 0 auto 50px;
-	position: relative;
-	padding-top: 60px;
-}
-
-#wp-fullscreen-title {
-    font-size: 1.7em;
-    line-height: 100%;
-    outline: medium none;
-    padding: 6px 7px;
-    width: 100%;
-    margin-bottom: 30px;
-}
-
-#wp-fullscreen-container {
-	padding: 4px 10px 50px;
-}
-
-#wp-fullscreen-title,
-#wp-fullscreen-container {
-	-webkit-border-radius: 0;
-	border-radius: 0;
-	border: 1px dashed transparent;
-	background: transparent;
-	-moz-transition-property: border-color;
-	-moz-transition-duration: 0.6s;
-	-webkit-transition-property: border-color;
-	-webkit-transition-duration: 0.6s;
-	-o-transition-property: border-color;
-	-o-transition-duration: 0.6s;
-	transition-property: border-color;
-	transition-duration: 0.6s;
-}
-
-#wp_mce_fullscreen {
-	width: 100%;
-	min-height: 300px;
-	border: 0;
-	background: transparent;
-	font-family: Consolas, Monaco, monospace;
-	line-height: 1.6em;
-	padding: 0;
-	overflow-y: hidden;
-	outline: none;
-	resize: none;
-}
-
-#wp-fullscreen-tagline {
-	color: #BBBBBB;
-	font-size: 18px;
-	float: right;
-	padding-top: 5px;
-}
-
-/* =Top bar
--------------------------------------------------------------- */
-#fullscreen-topbar {
-	position: fixed;
-	top: 0;
-	left: 0;
-	z-index: 150050;
-	border-bottom-style: solid;
-	border-bottom-width: 1px;
-	min-width: 800px;
-	width: 100%;
-	height: 40px;
-}
-
-#wp-fullscreen-toolbar {
-	padding: 6px 10px 0;
-	clear: both;
-	max-width: 1100px;
-	min-width: 820px;
-	margin: 0 auto;
-}
-
-#wp-fullscreen-mode-bar,
-#wp-fullscreen-button-bar,
-#wp-fullscreen-close,
-#wp-fullscreen-count {
-	float: left;
-}
-
-#wp-fullscreen-save {
-	float: right;
-	padding: 2px 2px 0 5px;
-}
-
-#wp-fullscreen-count,
-#wp-fullscreen-close {
-	padding-top: 5px;
-}
-
-#wp-fullscreen-central-toolbar {
-	margin: auto;
-	padding: 0;
-}
-
-#wp-fullscreen-buttons > div {
-	float: left;
-}
-
-#wp-fullscreen-mode-bar {
-	padding: 1px 14px 0 0;
-}
-
-#wp-fullscreen-modes a {
-	display: block;
-	font-size: 11px;
-	text-decoration: none;
-	float: left;
-	margin: 1px 0 0 0;
-	padding: 2px 6px 2px;
-	border-width: 1px 1px 1px 0;
-	border-style: solid;
-	border-color: #bbb;
-	color: #777;
-	text-shadow: 0 1px 0 #fff;
-	background-color: #f4f4f4;
-	background-image: -moz-linear-gradient(bottom,  #e4e4e4,  #f9f9f9);
-	background-image: -webkit-gradient(linear, left bottom, left top, from(#e4e4e4), to(#f9f9f9));
-}
-
-#wp-fullscreen-modes a:hover,
-.wp-html-mode #wp-fullscreen-modes a:last-child,
-.wp-tmce-mode #wp-fullscreen-modes a:first-child {
-	color: #333;
-	border-color: #999;
-	background-color: #eee;
-	background-image: -moz-linear-gradient(bottom,  #f9f9f9,  #e0e0e0);
-	background-image: -webkit-gradient(linear, left bottom, left top, from(#f9f9f9), to(#e0e0e0));
-}
-
-#wp-fullscreen-modes a:first-child {
-	border-width: 1px;
-	-webkit-border-top-left-radius: 3px;
-	-webkit-border-bottom-left-radius: 3px;
-	border-top-left-radius: 3px;
-	border-bottom-left-radius: 3px;
-}
-
-#wp-fullscreen-modes a:last-child {
-	-webkit-border-top-right-radius: 3px;
-	-webkit-border-bottom-right-radius: 3px;
-	border-top-right-radius: 3px;
-	border-bottom-right-radius: 3px;
-}
-
-#wp-fullscreen-buttons .active a {
-	background: inherit;
-}
-
-#wp-fullscreen-buttons .hidden {
-	display: none;
-}
-
-#wp-fullscreen-buttons .disabled {
-	opacity: 0.5;
-}
-
-.wp-html-mode #wp-fullscreen-buttons div {
-	display: none;
-}
-
-.wp-html-mode #wp-fullscreen-buttons div.wp-fullscreen-both {
-	display: block;
-}
-
-#fullscreen-topbar.fullscreen-make-sticky {
-	display: block !important;
-}
-
-#wp-fullscreen-save img {
-	vertical-align: middle;
-}
-
-#wp-fullscreen-save img,
-#wp-fullscreen-save span {
-	padding-right: 4px;
-	display: none;
-}
-
-#wp-fullscreen-buttons .mce_image .mce_image {
-	background-image: url('../images/menu.png?ver=20120201');
-	background-position: -124px -38px;
-}
-
-#wp-fullscreen-buttons .mce_image .mce_image:hover {
-	background-position: -124px -6px;
-}
-
-/* =Thickbox Adjustments
--------------------------------------------------------------- */
-.fullscreen-active #TB_overlay {
-	z-index: 150100;
-}
-
-.fullscreen-active #TB_window {
-	z-index: 150102;
-}
-
-/* =TinyMCE Adjustments
--------------------------------------------------------------- */
-#wp_mce_fullscreen_ifr {
-	background: transparent;
-}
-
-#wp_mce_fullscreen_parent #wp_mce_fullscreen_tbl tr.mceFirst {
-	display : none;
-}
-
-#wp-fullscreen-container .wp_themeSkin table td {
-	vertical-align: top;
-}
-
-
 /*------------------------------------------------------------------------------
   6.0 - Admin Header
 ------------------------------------------------------------------------------*/
@@ -7940,4 +7638,4 @@ a.widget-control-edit {
 }
 .locale-ru-ru .pressthis a {
 	width: 143px; /* default 113px + 30px */
-}
\ No newline at end of file
+}
diff --git wp-admin/js/wp-fullscreen.dev.js wp-admin/js/wp-fullscreen.dev.js
index eaf0efc..f2cf8aa 100644
--- wp-admin/js/wp-fullscreen.dev.js
+++ wp-admin/js/wp-fullscreen.dev.js
@@ -145,14 +145,12 @@ PubSub.prototype.publish = function( topic, args ) {
 
 		s.editor_id = wpActiveEditor || 'content';
 
-		if ( !s.title_id ) {
-			if ( $('input#title').length && s.editor_id == 'content' )
-				s.title_id = 'title';
-			else if ( $('input#' + s.editor_id + '-title').length ) // the title input field should have [editor_id]-title HTML ID to be auto detected
-				s.title_id = s.editor_id + '-title';
-			else
-				$('#wp-fullscreen-title, #wp-fullscreen-title-prompt-text').hide();
-		}
+		if ( $('input#title').length && s.editor_id == 'content' )
+			s.title_id = 'title';
+		else if ( $('input#' + s.editor_id + '-title').length ) // the title input field should have [editor_id]-title HTML ID to be auto detected
+			s.title_id = s.editor_id + '-title';
+		else
+			$('#wp-fullscreen-title, #wp-fullscreen-title-prompt-text').hide();
 
 		s.mode = $('#' + s.editor_id).is(':hidden') ? 'tinymce' : 'html';
 		s.qt_canvas = $('#' + s.editor_id).get(0);
diff --git wp-includes/class-wp-editor.php wp-includes/class-wp-editor.php
index af69b08..f8438b1 100644
--- wp-includes/class-wp-editor.php
+++ wp-includes/class-wp-editor.php
@@ -459,8 +459,10 @@ final class _WP_Editors {
 			wp_enqueue_style('wp-jquery-ui-dialog');
 		}
 
-		if ( in_array('wpfullscreen', self::$plugins, true) || in_array('fullscreen', self::$qt_buttons, true) )
+		if ( in_array('wpfullscreen', self::$plugins, true) || in_array('fullscreen', self::$qt_buttons, true) ) {
 			wp_enqueue_script('wp-fullscreen');
+			wp_enqueue_style('dfw');
+		}
 
 		if ( self::$has_medialib ) {
 			add_thickbox();
diff --git wp-includes/js/quicktags.dev.js wp-includes/js/quicktags.dev.js
index 903f320..16300b0 100644
--- wp-includes/js/quicktags.dev.js
+++ wp-includes/js/quicktags.dev.js
@@ -599,7 +599,7 @@ function edButton(id, display, tagStart, tagEnd, access, open) {
 	};
 	qt.FullscreenButton.prototype = new qt.Button();
 	qt.FullscreenButton.prototype.callback = function(e, c) {
-		if ( c.id != 'content' || typeof(fullscreen) == 'undefined' )
+		if ( c.id == undefined || typeof(fullscreen) == 'undefined' )
 			return;
 
 		fullscreen.on();
diff --git wp-includes/js/tinymce/plugins/wpfullscreen/editor_plugin_src.js wp-includes/js/tinymce/plugins/wpfullscreen/editor_plugin_src.js
index 6290c11..3f43229 100644
--- wp-includes/js/tinymce/plugins/wpfullscreen/editor_plugin_src.js
+++ wp-includes/js/tinymce/plugins/wpfullscreen/editor_plugin_src.js
@@ -34,7 +34,7 @@
 			ed.addCommand('wpFullScreenInit', function() {
 				var d, b, fsed;
 
-				ed = tinymce.get('content');
+				ed = tinyMCE.activeEditor;
 				d = ed.getDoc();
 				b = d.body;
 
diff --git wp-includes/script-loader.php wp-includes/script-loader.php
index 1365cb7..713af8c 100644
--- wp-includes/script-loader.php
+++ wp-includes/script-loader.php
@@ -463,6 +463,7 @@ function wp_default_styles( &$styles ) {
 	$styles->add( 'wp-jquery-ui-dialog', "/wp-includes/css/jquery-ui-dialog$suffix.css" );
 	$styles->add( 'editor-buttons', "/wp-includes/css/editor-buttons$suffix.css" );
 	$styles->add( 'wp-pointer', "/wp-includes/css/wp-pointer$suffix.css" );
+	$styles->add( 'dfw', "/wp-includes/css/dfw$suffix.css" );
 
 	foreach ( $rtl_styles as $rtl_style ) {
 		$styles->add_data( $rtl_style, 'rtl', true );