I created this for my own use, to make using the Group Chat in Facebook easier. Very very rough. It's obviously not perfect and might not even work properly, but you can tweak it if you know CSS.

What it does is, your active Facebook chat window(s) will pop out into a bigger floating section on the right side of your page.

It works better if your browser window size is big.

You can choose to have the taller or shorter version.

Be sure to pick the same version for both or it may look weird.