In this episode: Mozilla releases a browser extension to wall off Facebook A new leather-like material made out of mushroom roots Oracle forces the takedown of an app for using the word “Javascript” An amateur mathematician tackles a decades-old graph theory problem Are open offices better than closed offices? Get ready for your $89 laptop Forget “sunglasses”, here come Ever heard of “sun-lenses” And finally, the BBC released over 16,000 sound effects under a free license