Explore innovative ways to repurpose Firefox OS phones for Internet of Things (IoT) projects in this conference talk from JSConf EU 2014. Discover how stripping away the UI layer of Firefox OS reveals a powerful, sensor-rich platform that's more affordable than a Raspberry Pi. Learn about the potential of using the Gecko render engine and its APIs to access various hardware components. Get inspired by creative hacks like Bluetooth-enabled doorbells, GPS jacket trackers, and home surveillance systems using repurposed phones. Gain insights into leveraging Firefox OS devices for IoT applications and leave equipped with ideas to start your own hacking projects.