I'm new to Facebook (yes, that is still possible!). Yesterday, when I registered, Facebook chat in my account was tiny (about 1/5 of screen height) and showed only true on-line Friends.
Today, though I'm pretty sure I didn't change anything, I have Facebook chat as large sidebar, stick to right margin of browser, it is as high as my browser window, and shows all (most) of my Friends, not only those, who are on-line (others showed with time of last activity).
What did I switched or which Facebook option controls this? Can I revert to "old" (yesterday) tiny little chat box? I don't see anything in Chat's settings (knob icon) or in my account's general settings.