[HOW TO] Turn old chat interface from new one on Facebook

Facebook has been changing their design and view day by day. It is because of the competitor evolved that can do any thing in the current context of the world. Yes I want to speak about Google plus. Now people are really moving to Plus because they are being bored with the same interface and design. Looking onto it, Facebook start the major changes on different systems that can be viewed easily. The most irritating change that we have found was the change in FB chat system.