diff --git a/netwerk/protocol/http/UAOverridesBootstrapper.jsm b/netwerk/protocol/http/UAOverridesBootstrapper.jsm
deleted file mode 100644
index 6f773f740ea8..000000000000
--- a/netwerk/protocol/http/UAOverridesBootstrapper.jsm
+++ /dev/null
@@ -1,33 +0,0 @@
-/* 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 http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
-const { UserAgentOverrides } = ChromeUtils.import(
-  "resource://gre/modules/UserAgentOverrides.jsm"
-);
-
-function UAOverridesBootstrapper() {
-  this.init();
-}
-
-UAOverridesBootstrapper.prototype = {
-  init: function uaob_init() {
-    Services.obs.addObserver(this, "profile-change-net-teardown");
-    UserAgentOverrides.init();
-  },
-
-  observe: function uaob_observe(aSubject, aTopic, aData) {
-    if (aTopic == "profile-change-net-teardown") {
-      Services.obs.removeObserver(this, "profile-change-net-teardown");
-      UserAgentOverrides.uninit();
-    }
-  },
-
-  QueryInterface: ChromeUtils.generateQI([Ci.nsIObserver]),
-  classID: Components.ID("{965b0ca8-155b-11e7-93ae-92361f002671}"),
-};
-
-var EXPORTED_SYMBOLS = ["UAOverridesBootstrapper"];
diff --git a/netwerk/protocol/http/components.conf b/netwerk/protocol/http/components.conf
index d91e9741510e..d7af273d16ef 100644
--- a/netwerk/protocol/http/components.conf
+++ b/netwerk/protocol/http/components.conf
@@ -5,13 +5,6 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 Classes = [
-    {
-        'cid': '{965b0ca8-155b-11e7-93ae-92361f002671}',
-        'contract_ids': ['@mozilla.org/network/ua-overrides-bootstrapper;1'],
-        'jsm': 'resource://gre/modules/UAOverridesBootstrapper.jsm',
-        'constructor': 'UAOverridesBootstrapper',
-        'processes': ProcessSelector.MAIN_PROCESS_ONLY,
-    },
     {
         'cid': '{b4f96c89-5238-450c-8bda-e12c26f1d150}',
         'contract_ids': ['@mozilla.org/network/well-known-opportunistic-utils;1'],
diff --git a/netwerk/protocol/http/moz.build b/netwerk/protocol/http/moz.build
index b2a9848aa5aa..0f759262ac86 100644
--- a/netwerk/protocol/http/moz.build
+++ b/netwerk/protocol/http/moz.build
@@ -141,7 +141,6 @@ LOCAL_INCLUDES += [
 ]
 
 EXTRA_JS_MODULES += [
-    'UAOverridesBootstrapper.jsm',
     'WellKnownOpportunisticUtils.jsm',
 ]