diff --git a/toolkit/mozapps/update/UpdateService.jsm b/toolkit/mozapps/update/UpdateService.jsm
index 8a03b06e39db..02263f7df2cc 100644
--- a/toolkit/mozapps/update/UpdateService.jsm
+++ b/toolkit/mozapps/update/UpdateService.jsm
@@ -4672,29 +4672,4 @@ Downloader.prototype = {
                                           Ci.nsIInterfaceRequestor]),
 };
 
-/**
- * UpdatePrompt
- * An object which can prompt the user with information about updates, request
- * action, etc. Embedding clients can override this component with one that
- * invokes a native front end.
- * @constructor
- */
-function UpdatePrompt() {
-}
-UpdatePrompt.prototype = {
-  /**
-   * See nsIUpdateService.idl
-   */
-  showUpdateHistory: function UP_showUpdateHistory(parent) {
-    let uri = "chrome://mozapps/content/update/history.xul";
-    let features = "chrome,centerscreen,resizable=no,titlebar,toolbar=no,dialog=yes,modal";
-    Services.ww.openWindow(parent, uri, "Update:Elevation", features, null);
-  },
-
-  classDescription: "Update Prompt",
-  contractID: "@mozilla.org/updates/update-prompt;1",
-  classID: Components.ID("{27ABA825-35B5-4018-9FDD-F99250A0E722}"),
-  QueryInterface: ChromeUtils.generateQI([Ci.nsIUpdatePrompt]),
-};
-
-var EXPORTED_SYMBOLS = ["UpdateService", "Checker", "UpdatePrompt", "UpdateManager"];
+var EXPORTED_SYMBOLS = ["UpdateService", "Checker", "UpdateManager"];
diff --git a/toolkit/mozapps/update/components.conf b/toolkit/mozapps/update/components.conf
index 55edfc04dd7f..b61ec51c9048 100644
--- a/toolkit/mozapps/update/components.conf
+++ b/toolkit/mozapps/update/components.conf
@@ -23,12 +23,6 @@ Classes = [
         'jsm': 'resource://gre/modules/UpdateService.jsm',
         'constructor': 'Checker',
     },
-    {
-        'cid': '{27ABA825-35B5-4018-9FDD-F99250A0E722}',
-        'contract_ids': ['@mozilla.org/updates/update-prompt;1'],
-        'jsm': 'resource://gre/modules/UpdateService.jsm',
-        'constructor': 'UpdatePrompt',
-    },
 
     {
         'cid': '{e43b0010-04ba-4da6-b523-1f92580bc150}',
diff --git a/toolkit/mozapps/update/nsIUpdateService.idl b/toolkit/mozapps/update/nsIUpdateService.idl
index 7852fb72f5aa..28e4ddf8fb00 100644
--- a/toolkit/mozapps/update/nsIUpdateService.idl
+++ b/toolkit/mozapps/update/nsIUpdateService.idl
@@ -477,18 +477,3 @@ interface nsIUpdateManager : nsISupports
    */
   void cleanupActiveUpdate();
 };
-
-/**
- * An interface describing an object that can show various kinds of Update
- * notification UI to the user.
- */
-[scriptable, uuid(cee3bd60-c564-42ff-a2bf-d442cb15f75c)]
-interface nsIUpdatePrompt : nsISupports
-{
-  /**
-   * Shows a list of all updates installed to date.
-   * @param   parent
-   *          An nsIDOMWindow to set as the parent for this window. Can be null.
-   */
-  void showUpdateHistory(in nsIDOMWindow parent);
-};