Mozilla is developing a push notification system for the company’s Firefox Web browser. The system will allow users to receive notifications from any website, even if the site is not open in a tab or window. The system will also be able to relay push notifications to mobile devices. Mozilla is seemingly looking to close the gap between desktop Web apps and native mobile apps, which utilize push notification systems on a number of mobile platforms. “Push notifications are a way for websites to send small messages to users when the user is not on the site,” said Mozilla developer Jeff Balogh on the company’s blog. “iOS and Android devices already support their own push notification services, but we want to make notifications available to the whole web.” The system is currently in early planning stages and there is no available time table for release.