diff -r 000000000000 -r 6474c204b198 services/sync/modules/main.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/services/sync/modules/main.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+/* 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.EXPORTED_SYMBOLS = ['Weave'];
+
+this.Weave = {};
+Components.utils.import("resource://services-sync/constants.js", Weave);
+let lazies = {
+  "jpakeclient.js":       ["JPAKEClient", "SendCredentialsController"],
+  "notifications.js":     ["Notifications", "Notification", "NotificationButton"],
+  "service.js":           ["Service"],
+  "status.js":            ["Status"],
+  "util.js":              ['Utils', 'Svc']
+};
+
+function lazyImport(module, dest, props) {
+  function getter(prop) function() {
+    let ns = {};
+    Components.utils.import(module, ns);
+    delete dest[prop];
+    return dest[prop] = ns[prop];
+  };
+  props.forEach(function(prop) dest.__defineGetter__(prop, getter(prop)));
+}
+
+for (let mod in lazies) {
+  lazyImport("resource://services-sync/" + mod, Weave, lazies[mod]);
+}