gistfile1.txt

        # v1.3 requires a different wait
        Wait(marionette=self.marionette, timeout=timeout)\
                .until(lambda m: m.execute_script('return window.wrappedJSObject.AppWindowManager || window.wrappedJSObject.WindowManager'))
        if self.marionette.execute_script('return window.wrappedJSObject.AppWindowManager') == 'None':
            if self.is_android_build:
                self.marionette.execute_async_script("""
window.addEventListener('mozbrowserloadend', function loaded(aEvent) {
  if (aEvent.target.src.indexOf('ftu') != -1 || aEvent.target.src.indexOf('homescreen') != -1) {
    window.removeEventListener('mozbrowserloadend', loaded);
    marionetteScriptFinished();
  }
});""", script_timeout=timeout*1000)
                # TODO: Remove this sleep when Bug 924912 is addressed
                time.sleep(5)
        else:
            # Wait for the AppWindowManager to have registered the frame as active (loaded)
            locator = (By.CSS_SELECTOR, 'div.appWindow.active.render')
            Wait(marionette=self.marionette, timeout=timeout, ignored_exceptions=NoSuchElementException)\
                .until(lambda m: m.find_element(*locator).is_displayed())