1 files changed, 38 insertions, 0 deletions
diff --git a/browser/modules/BackgroundTask_uninstall.sys.mjs b/browser/modules/BackgroundTask_uninstall.sys.mjs
new file mode 100644
index 0000000000..17aa6968a3
--- /dev/null
+++ b/browser/modules/BackgroundTask_uninstall.sys.mjs
@@ -0,0 +1,38 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+ * 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/. */
+
+import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
+
+export async function runBackgroundTask(commandLine) {
+  if (AppConstants.platform !== "win") {
+    console.log("Not a Windows install, skipping `uninstall` background task.");
+    return;
+  }
+  console.log("Running BackgroundTask_uninstall.");
+
+  removeNotifications();
+}
+
+function removeNotifications() {
+  console.log("Removing Windows toast notifications.");
+
+  if (!("nsIWindowsAlertsService" in Ci)) {
+    console.log("nsIWindowsAlertService not present.");
+    return;
+  }
+
+  let alertsService;
+  try {
+    alertsService = Cc["@mozilla.org/system-alerts-service;1"]
+      .getService(Ci.nsIAlertsService)
+      .QueryInterface(Ci.nsIWindowsAlertsService);
+  } catch (e) {
+    console.error("Error retrieving nsIWindowsAlertService: " + e.message);
+    return;
+  }
+
+  alertsService.removeAllNotificationsForInstall();
+  console.log("Finished removing Windows toast notifications.");
+}