My question is how I can do video calls on Facebook, I'm new to Linux, recently installed Ubuntu 11.10. I really like the OS but I can not make video calls on Facebook and this is terrible. Please anyone who can help in this.
Unfortunately, Facebook does not support video calling on Ubuntu yet, as explained on the Facebook Help Center. They haven't developed their plugin yet.
Full support now (January 2015). You no longer need to install a special plugin or anything. You only need a supported browser which is firefox or chrome/chromium etc.
Opera is mentioned but I would be surprised if anything other than the Opera developer version for linux was supported because linux opera is severely outdated but who knows, all I know is that it works fine and tested less than 10 minutes ago on firefox-34.0 with nothing to install.
To start a video call:
Open a chat window with a friend
Click in the top right corner
If your friend isn't currently able to receive a video call the will be grayed out, and you'll see a message that says "[Name] is currently unavailable for video calling."
You cannot make Facebook video call on Ubuntu for now.
Video calling is not currently available on Linux.
Source: Facebook Help