Watch YouTube in sync with your friends.
With this browser extension you can create new lobbies on SyncTube and add videos to existing lobbies with ease.
Features:
Create a new SyncTube lobby from your opened YouTube video or HTML5 video link with a single click
Send your opened YouTube video or HTML5 video link to an existing lobby - it automatically detects lobbies you're hosting!
Really easy to use and works works smoothly most of the time, although it doesn't let you communicate directly with your friends