Messenger for Desktop description:
Social network Messenger for your desktop to open your browser, chat program, which allows access without Facebook makes the conversation much easier.
This unofficial client Messenger.com the web version provides access to every feature without any limitations provided: people or groups; send photos, videos, and stickers; and you can chat with video or voice calls. Any incoming message with the application will also show tabs, even if you have minimized a program, the desktop notification system.
Obviously, you need a Facebook account to use this tool. Also (platform supported by the web site itself, or chat about different mobile applications Facebook) Facebook will allow you to synchronize all activity with contacts on other platforms.