diff --git a/src/js/redirect-engine.js b/src/js/redirect-engine.js
index f584794da..f76d3c0e0 100644
--- a/src/js/redirect-engine.js
+++ b/src/js/redirect-engine.js
@@ -57,6 +57,14 @@ const immutableResources = new Map([
         alias: 'aopw.js',
         redirect: false
     } ],
+    [ 'addEventListener-defuser.js', {
+        alias: 'aeld.js',
+        redirect: false
+    } ],
+    [ 'addEventListener-logger.js', {
+        alias: 'aell.js',
+        redirect: false
+    } ],
     [ 'addthis_widget.js', {
         alias: 'addthis.com/addthis_widget.js',
         inject: false
@@ -174,6 +182,10 @@ const immutableResources = new Map([
     [ 'popads-dummy.js', {
         alias: 'popads-dummy.js',
     } ],
+    [ 'remove-attr.js', {
+        alias: 'ra.js',
+        redirect: false
+    } ],
     [ 'scorecardresearch_beacon.js', {
         alias: 'scorecardresearch.com/beacon.js',
         inject: false
@@ -200,6 +212,8 @@ const immutableResources = new Map([
     [ 'webrtc-if.js', {
         redirect: false
     } ],
+    [ 'window.open-defuser.js', {
+    } ],
 ]);
 
 const mimeMap = {
diff --git a/src/web_accessible_resources/addEventListener-defuser.js b/src/web_accessible_resources/addEventListener-defuser.js
new file mode 100644
index 000000000..ad6480b4b
--- /dev/null
+++ b/src/web_accessible_resources/addEventListener-defuser.js
@@ -0,0 +1,57 @@
+/*******************************************************************************
+
+    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';
+    let needle1 = '{{1}}';
+    if ( needle1 === '' || needle1 === '{{1}}' ) {
+        needle1 = '.?';
+    } else if ( /^\/.+\/$/.test(needle1) ) {
+        needle1 = needle1.slice(1,-1);
+    } else {
+        needle1 = needle1.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+    }
+    needle1 = new RegExp(needle1);
+    let needle2 = '{{2}}';
+    if ( needle2 === '' || needle2 === '{{2}}' ) {
+        needle2 = '.?';
+    } else if ( /^\/.+\/$/.test(needle2) ) {
+        needle2 = needle2.slice(1,-1);
+    } else {
+        needle2 = needle2.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+    }
+    needle2 = new RegExp(needle2);
+    self.EventTarget.prototype.addEventListener = new Proxy(
+        self.EventTarget.prototype.addEventListener,
+        {
+            apply: function(target, thisArg, args) {
+                const type = args[0].toString();
+                const handler = String(args[1]);
+                if (
+                    needle1.test(type) === false ||
+                    needle2.test(handler) === false
+                ) {
+                    return target.apply(thisArg, args);
+                }
+            }
+        }
+    );
+})();
diff --git a/src/web_accessible_resources/addEventListener-logger.js b/src/web_accessible_resources/addEventListener-logger.js
new file mode 100644
index 000000000..cd19161cf
--- /dev/null
+++ b/src/web_accessible_resources/addEventListener-logger.js
@@ -0,0 +1,36 @@
+/*******************************************************************************
+
+    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';
+    const log = console.log.bind(console);
+    self.EventTarget.prototype.addEventListener = new Proxy(
+        self.EventTarget.prototype.addEventListener,
+        {
+            apply: function(target, thisArg, args) {
+                const type = args[0].toString();
+                const handler = String(args[1]);
+                log('addEventListener("%s", %s)', type, handler);
+                return target.apply(thisArg, args);
+            }
+        }
+    );
+})();
diff --git a/src/web_accessible_resources/remove-attr.js b/src/web_accessible_resources/remove-attr.js
new file mode 100644
index 000000000..c3edc7c50
--- /dev/null
+++ b/src/web_accessible_resources/remove-attr.js
@@ -0,0 +1,50 @@
+/*******************************************************************************
+
+    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';
+    const token = '{{1}}';
+    if ( token === '' || token === '{{1}}' ) { return; }
+    const tokens = token.split(/\s*\|\s*/);
+    let selector = '{{2}}';
+    if ( selector === '' || selector === '{{2}}' ) {
+        selector = `[${tokens.join('],[')}]`;
+    }
+    const rmattr = function(ev) {
+        if ( ev ) {
+            window.removeEventListener(ev.type, rmattr, true);
+        }
+        try {
+            const nodes = document.querySelectorAll(selector);
+            for ( const node of nodes ) {
+                for ( const attr of tokens ) {
+                    node.removeAttribute(attr);
+                }
+            }
+        } catch(ex) {
+        }
+    };
+    if ( document.readyState === 'loading' ) {
+        window.addEventListener('DOMContentLoaded', rmattr, true);
+    } else {
+        rmattr();
+    }
+})();
diff --git a/src/web_accessible_resources/window.open-defuser.js b/src/web_accessible_resources/window.open-defuser.js
new file mode 100644
index 000000000..4558cac20
--- /dev/null
+++ b/src/web_accessible_resources/window.open-defuser.js
@@ -0,0 +1,43 @@
+/*******************************************************************************
+
+    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';
+    let result = parseInt('{{1}}', 10);
+    result = isNaN(result) || result !== 0;
+    let needle = '{{2}}';
+    if ( needle === '' || needle === '{{2}}' ) {
+        needle = '.?';
+    } else if ( /^\/.+\/$/.test(needle) ) {
+        needle = needle.slice(1,-1);
+    } else {
+        needle = needle.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+    }
+    needle = new RegExp(needle);
+    window.open = new Proxy(window.open, {
+        apply: function(target, thisArg, args) {
+            const url = args[0];
+            if ( needle.test(url) === result ) {
+                return target.apply(thisArg, args);
+            }
+        }
+    });
+})();