How to Remove the New Facebook Chat Sidebar and get old one back?

Recently Facebook came up with the new Facebook Chat Bar that they thought would be a big hit, but it turned out to be a total flop as most of the Facebook users preferred to use the old Facebook Chat Sidebar rather than the new which they felt did not show everyone online or could not be scrolled.

But Facebook did look into these issues and has made a few tweaks to the new Facebook Chat Sidebar but still it does not seem to match up to the old Facebook Chat.

So, How to Remove the New Facebook Chat Sidebar and get old one back?

There is a Facebook Chat Disabler, that is the new chat gets disabled and you can use the Old one afterwards.

Currently this Application is available only for the Mozilla Firefox Browser and hence the Google Chrome and Internet Explorer users cannot use this Application.

Here is the Facebook New Chat Disabler