diff --git a/files/renderer.php b/files/renderer.php
index 2a5e3512b1a..69278475a2d 100644
--- a/files/renderer.php
+++ b/files/renderer.php
@@ -188,7 +188,7 @@ class core_files_renderer extends plugin_renderer_base {
         $strdroptoupload = get_string('droptoupload', 'moodle');
         $icon_progress = $OUTPUT->pix_icon('i/loading_small', $strloading).'';
         $restrictions = $this->fm_print_restrictions($fm);
-        $strdndenabled = get_string('dndenabled_insentence', 'moodle').$OUTPUT->help_icon('dndenabled');
+        $strdndnotsupported = get_string('dndnotsupported_insentence', 'moodle').$OUTPUT->help_icon('dndnotsupported');
         $strdndenabledinbox = get_string('dndenabled_inbox', 'moodle');
         $loading = get_string('loading', 'repository');
 
@@ -196,7 +196,7 @@ class core_files_renderer extends plugin_renderer_base {
 <div id="filemanager-'.$client_id.'" class="filemanager fm-loading">
     <div class="fp-restrictions">
         '.$restrictions.'
-        <span class="dndupload-message"> - '.$strdndenabled.' </span>
+        <span class="dnduploadnotsupported-message"> - '.$strdndnotsupported.' </span>
     </div>
     <div class="fp-navbar">
         <div class="filemanager-toolbar">
diff --git a/lang/en/moodle.php b/lang/en/moodle.php
index 3fc8e8705f8..12842c9dbe9 100644
--- a/lang/en/moodle.php
+++ b/lang/en/moodle.php
@@ -468,10 +468,10 @@ $string['displayingfirst'] = 'Only the first {$a->count} {$a->things} are displa
 $string['displayingrecords'] = 'Displaying {$a} records';
 $string['displayingusers'] = 'Displaying users {$a->start} to {$a->end}';
 $string['displayonpage'] = 'Display on page';
-$string['dndenabled'] = 'Drag and drop available';
-$string['dndenabled_help'] = 'You can drag one or more files from your desktop and drop them onto the box below to upload them.<br />Note: this may not work with other web browsers';
-$string['dndenabled_insentence'] = 'drag and drop available';
 $string['dndenabled_inbox'] = 'You can drag and drop files here to add them.';
+$string['dndnotsupported'] = 'Drag and drop upload not supported';
+$string['dndnotsupported_help'] = 'Your browser does not support drag and drop upload.<br />This feature is available in all recent versions of Chrome, Firefox and Safari, as well as Internet Explorer v10 and above.';
+$string['dndnotsupported_insentence'] = 'drag and drop not supported';
 $string['dnduploadwithoutcontent'] = 'This upload does not have any content';
 $string['dndworkingfiletextlink'] = 'Drag and drop files, text or links onto course sections to upload them';
 $string['dndworkingfilelink'] = 'Drag and drop files or links onto course sections to upload them';
diff --git a/theme/base/style/filemanager.css b/theme/base/style/filemanager.css
index 9fc9fe436aa..2cecdc4abbc 100644
--- a/theme/base/style/filemanager.css
+++ b/theme/base/style/filemanager.css
@@ -341,6 +341,8 @@ a.ygtvspacer:hover {color: transparent;text-decoration: none;}
 .filemanager-container.dndupload-over .dndupload-target {background:#FFFFFF;position:absolute;top:10px;bottom:10px;left:10px;right:10px;border: 2px dashed #6c8cd3;padding-top:85px;text-align:center;z-index: 3000;}
 .dndupload-message {display:none;}
 .dndsupported .dndupload-message {display:inline;}
+.dnduploadnotsupported-message {display:none;}
+.dndnotsupported .dnduploadnotsupported-message {display:inline;}
 .dndupload-target {display:none;}
 .dndsupported .dndupload-ready .dndupload-target {display:block;}
 .dndupload-uploadinprogress {display:none;text-align:center;}