Mozilla Launched Facebook Messenger for Firefox

Finally Mozilla officially launched Facebook Messenger for all the Firefox fans. Now you can chat with your friends and stay connected with their new updates with Facebook messenger on Firefox. When you enable the fb messenger on your Firefox web browser, it will show you a social sidebar. You can get all the Facebook updates with this, like chat message, new comments and new photo tags. And also you'll get all the notification for new friend request, new subscribers, and messages.

How to enable this feature?

Update your Firefox to latest version.
Go to Facebook Messenger for Firefox page.
Click on Turn On Button.

That's all, you have done !!