diff --git a/ios/brave-ios/Sources/Brave/Frontend/UserContent/UserScripts/AllFrames/AtDocumentStart/FullscreenHelper.js b/ios/brave-ios/Sources/Brave/Frontend/UserContent/UserScripts/AllFrames/AtDocumentStart/FullscreenHelper.js
deleted file mode 100644
index 64bb5fc5661..00000000000
--- a/ios/brave-ios/Sources/Brave/Frontend/UserContent/UserScripts/AllFrames/AtDocumentStart/FullscreenHelper.js
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2022 The Brave Authors. All rights reserved.
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at https://mozilla.org/MPL/2.0/.
-
-window.__firefox__.includeOnce('FullscreenHelper', function($) {
-  let isFullscreenSupportedNatively = document.fullscreenEnabled ||
-      document.webkitFullscreenEnabled || document.mozFullScreenEnabled ||
-      document.msFullscreenEnabled;
-
-  let videosSupportFullscreen = HTMLVideoElement.prototype.webkitEnterFullscreen !== undefined
-
-  if (!isFullscreenSupportedNatively && videosSupportFullscreen && !/mobile/i.test(navigator.userAgent)) {
-
-    HTMLElement.prototype.requestFullscreen = $(function() {
-      if (this.webkitRequestFullscreen !== undefined) {
-        this.webkitRequestFullscreen();
-        return true;
-      }
-
-      if (this.webkitEnterFullscreen !== undefined) {
-        this.webkitEnterFullscreen();
-        return true;
-      }
-
-      var video = this.querySelector("video")
-      if (video !== undefined) {
-        video.webkitEnterFullscreen();
-        return true;
-      }
-      return false;
-    });
-
-    Object.defineProperty(document, 'fullscreenEnabled', {
-      get: function() {
-        return true;
-      }
-    });
-
-    Object.defineProperty(document.documentElement, 'fullscreenEnabled', {
-      get: function() {
-        return true;
-      }
-    });
-  }
-});