--- a/b2g/chrome/content/shell.js
+++ b/b2g/chrome/content/shell.js
@@ -182,16 +182,17 @@ var shell = {
     SettingsListener.observe("debug.fps.enabled", false, function(value) {
       Services.prefs.setBoolPref("layers.acceleration.draw-fps", value);
     });
     SettingsListener.observe("debug.paint-flashing.enabled", false, function(value) {
       Services.prefs.setBoolPref("nglayout.debug.paint_flashing", value);
     });
 
     this.contentBrowser.src = homeURL;
+    this.isHomeLoaded = false;
 
     ppmm.addMessageListener("content-handler", this);
   },
 
   stop: function shell_stop() {
     window.removeEventListener('keydown', this, true);
     window.removeEventListener('keypress', this, true);
     window.removeEventListener('keyup', this, true);
@@ -307,16 +308,27 @@ var shell = {
 
         let chromeWindow = window.QueryInterface(Ci.nsIDOMChromeWindow);
         chromeWindow.browserDOMWindow = new nsBrowserAccess();
 
         Cu.import('resource://gre/modules/Webapps.jsm');
         DOMApplicationRegistry.allAppsLaunchable = true;
 
         this.sendEvent(window, 'ContentStart');
+
+        content.addEventListener('load', function shell_homeLoaded() {
+          content.removeEventListener('load', shell_homeLoaded);
+          shell.isHomeLoaded = true;
+
+          if ('pendingChromeEvents' in shell) {
+            shell.pendingChromeEvents.forEach((shell.sendChromeEvent).bind(shell));
+          }
+          delete shell.pendingChromeEvents;
+        });
+
         break;
       case 'MozApplicationManifest':
         try {
           if (!Services.prefs.getBoolPref('browser.cache.offline.enable'))
             return;
 
           let contentWindow = evt.originalTarget.defaultView;
           let documentElement = contentWindow.document.documentElement;
@@ -352,16 +364,25 @@ var shell = {
 
   sendEvent: function shell_sendEvent(content, type, details) {
     let event = content.document.createEvent('CustomEvent');
     event.initCustomEvent(type, true, true, details ? details : {});
     content.dispatchEvent(event);
   },
 
   sendChromeEvent: function shell_sendChromeEvent(details) {
+    if (!this.isHomeLoaded) {
+      if (!('pendingChromeEvents' in this)) {
+        this.pendingChromeEvents = [];
+      }
+
+      this.pendingChromeEvents.push(details);
+      return;
+    }
+
     this.sendEvent(getContentWindow(), "mozChromeEvent",
                    ObjectWrapper.wrap(details, getContentWindow()));
   },
 
   sendSystemMessage: function shell_sendSystemMessage(msg) {
     let origin = Services.io.newURI(msg.manifest, null, null).prePath;
     this.sendChromeEvent({
       type: 'open-app',