Index: typo3/sysext/cms/tslib/class.tslib_fe.php
===================================================================
--- typo3/sysext/cms/tslib/class.tslib_fe.php	(revision 9309)
+++ typo3/sysext/cms/tslib/class.tslib_fe.php	(working copy)
@@ -3864,7 +3864,7 @@
 	 * @return	void
 	 */
 	function previewInfo()	{
-		if ($this->fePreview) {
+		if ($this->fePreview && (!isset($this->config['config']['disablePreviewNotification']) || intval($this->config['config']['disablePreviewNotification']) !== 1)) {
 				if ($this->fePreview === 2) {
 					$onclickForStoppingPreview = 'document.location="'.t3lib_div::getIndpEnv('TYPO3_SITE_URL').'index.php?ADMCMD_prev=LOGOUT&returnUrl='.rawurlencode(t3lib_div::getIndpEnv('REQUEST_URI')).'";return false;';
 					$text = 'Preview of workspace "'.$this->whichWorkspace(TRUE).'" ('.$this->whichWorkspace().')';