diff --git a/assets/resources/scriptlets.js b/assets/resources/scriptlets.js
index c5b3818674464..dffc94c784561 100644
--- a/assets/resources/scriptlets.js
+++ b/assets/resources/scriptlets.js
@@ -1860,6 +1860,7 @@ builtinScriptlets.push({
     aliases: [
         'nowoif.js',
         'prevent-window-open.js',
+        'window.open-defuser.js',
     ],
     fn: noWindowOpenIf,
     dependencies: [
diff --git a/src/web_accessible_resources/window.open-defuser.js b/src/web_accessible_resources/window.open-defuser.js
deleted file mode 100644
index 7f12ece75231d..0000000000000
--- a/src/web_accessible_resources/window.open-defuser.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/*******************************************************************************
-
-    uBlock Origin - a browser extension to block requests.
-    Copyright (C) 2019-present Raymond Hill
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see {http://www.gnu.org/licenses/}.
-
-    Home: https://github.com/gorhill/uBlock
-*/
-
-(function() {
-    'use strict';
-    window.open = new Proxy(window.open, {
-        apply: function() {
-            return null;
-        }
-    });
-})();