Facebook not worry there are those who take advantage of "leakage" of this by providing fake download link, the file containing the virus. Anticipating this, Facebook also publishes the official link to install the Facebook Messenger. Interestingly, it turns out the URL address to download the Facebook application is published, together with previously published URL address.
Facebook Messenger has been previously available for mobile devices. Having worked with both in smart phones, Facebook and make this application for Windows-based PC or laptop.
Facebook Messenger is a chat application like Yahoo Messenger or Skype. Only, to get into the Facebook Messenger certainly have to login using your Facebook account that was owned, not e-mail address. You can start the installation by downloading the installation file from this link.
After installation is complete, you can open the application and login using your Facebook account. This application looks like a chat feature that is in the bottom right of each of you open up the browser on the computer. You can use this application without having to open a browser and go to the Facebook site.
Advantages of Facebook Messenger is that you will get the same experience when you open up the browser. If someone sends a friend request notification will occur. You can also send private messages through this application.