Mozilla is dedicated to ensuring that competition and innovation thrive on the Internet. In the last decade we rescued the Web from a near-monopoly and restored competition to the browser market. Now the standards-based Web platform is evolving rapidly - mostly in a good direction - and is defeating some of its competitors, such as proprietary browser plugins. However, it faces fresh challenges, in particular, single-vendor platforms for mobile devices that are attracting application developers away from the Web platform. In this talk I will describe the work we’re doing to ensure that the standards-based Web wins again - developing new technologies, extending Web standards, and shipping great products on all kinds of devices. I’ll talk about the challenges we face and what people who care about competition and freedom can do to help. Robert O’Callahan has been trying to save the world by contributing to Mozilla since 1999. In 2005 he left a career in computer science research at IBM to move back to New Zealand and work full-time for Mozilla, building up an Auckland development office (which is hiring!). He works on the Gecko engine that powers Firefox, focusing on layout, rendering, and media. He manages the video and media team, but prefers coding. Licensed as Creative Commons Attribution NonCommercial ShareAlike 3.0 Unported license (http://creativecommons.org/licenses/by-nc-sa/3.0/).