1 files changed, 32 insertions, 0 deletions
diff --git a/services/sync/tps/extensions/tps/resource/modules/windows.sys.mjs b/services/sync/tps/extensions/tps/resource/modules/windows.sys.mjs
new file mode 100644
index 0000000000..b0798b9031
--- /dev/null
+++ b/services/sync/tps/extensions/tps/resource/modules/windows.sys.mjs
@@ -0,0 +1,32 @@
+/* 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/. */
+
+/* This is a JavaScript module (JSM) to be imported via
+   ChromeUtils.import() and acts as a singleton.
+   Only the following listed symbols will exposed on import, and only when
+   and where imported. */
+
+export var BrowserWindows = {
+  /**
+   * Add
+   *
+   * Opens a new window. Throws on error.
+   *
+   * @param aPrivate The private option.
+   * @return nothing
+   */
+  Add(aPrivate, fn) {
+    return new Promise(resolve => {
+      let mainWindow = Services.wm.getMostRecentWindow("navigator:browser");
+      let win = mainWindow.OpenBrowserWindow({ private: aPrivate });
+      win.addEventListener(
+        "load",
+        function () {
+          resolve(win);
+        },
+        { once: true }
+      );
+    });
+  },
+};