diff --git a/ChangeLog b/ChangeLog
index be5a25dcbf..73e2681c06 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -38,6 +38,7 @@ phpMyAdmin - ChangeLog
 - issue #11874 Report when version check and error reporting are disabled
 - issue #11849 Fix PDF schema export
 - issue #11412 Remove ForceSSL configuration directive
+- issue        Remove support for Mozilla Prism
 
 4.5.5.0 (not yet released)
 - issue        Undefined index: is_ajax_request
diff --git a/webapp.php b/webapp.php
deleted file mode 100644
index 1c1246e7ec..0000000000
--- a/webapp.php
+++ /dev/null
@@ -1,51 +0,0 @@
-<?php
-/* vim: set expandtab sw=4 ts=4 sts=4: */
-/**
- * generate an WebApp file for Prism / WebRunner
- *
- * @package PhpMyAdmin
- * @see     http://wiki.mozilla.org/Prism
- */
-use PMA\libraries\ZipFile;
-
-/**
- * @ignore
- */
-define('PMA_MINIMUM_COMMON', true);
-/**
- * Gets core libraries and defines some variables
- */
-require './libraries/common.inc.php';
-
-// ini file
-$parameters = array(
-    'id'        => 'phpMyAdmin@' . $_SERVER['HTTP_HOST'],
-    'uri'       => $GLOBALS['PMA_Config']->get('PmaAbsoluteUri'),
-    'status'    => 'yes',
-    'location'  => 'no',
-    'sidebar'   => 'no',
-    'navigation' => 'no',
-    'icon'      => 'phpMyAdmin',
-);
-
-// dom script file
-// none need yet
-
-// icon
-$icon = 'favicon.ico';
-
-// name
-$name = 'phpMyAdmin.webapp';
-
-$ini_file = "[Parameters]\n";
-foreach ($parameters as $key => $value) {
-    $ini_file .= $key . '=' . $value . "\n";
-}
-
-PMA_downloadHeader($name, 'application/webapp', 0, false);
-
-$zip = new ZipFile;
-$zip->setDoWrite();
-$zip->addFile($ini_file, 'webapp.ini');
-$zip->addFile(file_get_contents($icon), 'phpMyAdmin.ico');
-$zip->file();