diff --git a/remote/cdp/RecommendedPreferences.jsm b/remote/cdp/RecommendedPreferences.jsm
index 8fc3b3244a04..8841a142cf67 100644
--- a/remote/cdp/RecommendedPreferences.jsm
+++ b/remote/cdp/RecommendedPreferences.jsm
@@ -7,13 +7,6 @@
 var EXPORTED_SYMBOLS = ["RecommendedPreferences"];
 
 const RecommendedPreferences = {
-  // Disable automatically upgrading Firefox
-  //
-  // Note: This preference should have already been set by the client when
-  // creating the profile. But if not and to absolutely make sure that updates
-  // of Firefox aren't downloaded and applied, enforce its presence.
-  "app.update.disabledForTesting": true,
-
   // Allow the application to have focus even when it runs in the background.
   "focusmanager.testmode": true,
 
diff --git a/toolkit/mozapps/update/UpdateService.jsm b/toolkit/mozapps/update/UpdateService.jsm
index ad2ee1e00bf2..e615f7d6fdc0 100644
--- a/toolkit/mozapps/update/UpdateService.jsm
+++ b/toolkit/mozapps/update/UpdateService.jsm
@@ -39,17 +39,6 @@ XPCOMUtils.defineLazyModuleGetters(this, {
   WindowsRegistry: "resource://gre/modules/WindowsRegistry.jsm",
 });
 
-if (AppConstants.ENABLE_REMOTE_AGENT) {
-  XPCOMUtils.defineLazyServiceGetter(
-    this,
-    "RemoteAgent",
-    "@mozilla.org/remote/agent;1",
-    "nsIRemoteAgent"
-  );
-} else {
-  this.RemoteAgent = { listening: false };
-}
-
 const UPDATESERVICE_CID = Components.ID(
   "{B3C290A6-3943-4B89-8BBE-C01EB7B3B311}"
 );
@@ -3594,7 +3583,7 @@ UpdateService.prototype = {
     }
 
     return (
-      (Cu.isInAutomation || marionetteRunning || RemoteAgent.listening) &&
+      (Cu.isInAutomation || marionetteRunning) &&
       Services.prefs.getBoolPref(PREF_APP_UPDATE_DISABLEDFORTESTING, false)
     );
   },