This extension hides everything on Facebook except for chat
This simple extension allows you to show and hide Facebook UI elements (currently the top blue-bar and the global container - newsfeed, profiles, etc.) so you can chat without the distraction of everything else.
To use: install the extension, browse to Facebook, and refresh. In the bottom right of the window next to chat, you should see a button labeled "Hide Facebook". Boom.
Note: names are hidden in extension screenshots for safety of those shown. The extension does not hide the names of those you are chatting with or in your friend list. That would be silly.
v.1.1.2 - updated right spacing of button to align better with new minified Facebook chat bar.
v1.1.1 - updated the extension to add an overlay instead of hiding elements with CSS. There was a big performance issue that I think this update will correct. Let me know if you are still experience Facebook running slower with this enabled!