On top of making one of the most popular web browsers in the world, Mozilla has also been developing a mobile operating system. Mozilla has announced that they have launched Firefox OS 1.1. The updated version of the service includes support for push notifications along with MMS messaging features. Firefox OS 1.1 users will be able to receive files through text messages with the MMS feature. The update also allows users to download content from the web browser like images, audio, and video content.