Mozilla introduced its very own chat client with video chat called Firefox Hello. To access it, just click the little smiley face in the top-right corner. If you're familiar with Google Hangouts, you'll be able to find your way around. There's no need to download any software to use Hello, in fact other people don't even need to be on Firefox, they just need to be using WebRTC-supported browsers like Firefox, Chrome, or Opera. You can just start a new chat room with its own link and send it to whoever you'd like to join.