Facebook’s latest feature of video calling powered by Skype, which was opened and was followed by the introduction of ‘Hangout’, video chat by Google in Google+, is not carried for all Operating Systems.
The video calling supports Firefox, Chrome, Safari, and Internet Explorer on Windows, Mac and Linux OS but it doesn’t work in the pre-released edition of Mac OS X. Facebook video calling is blocked on Mac OS X Lion browsers. You will observe the video call button go grey with notification saying, “Not supported in this browser or OS version” if you try to make a video call using your Mac OS X Lion.
On the other hand, BestTechie proposes a method by which you can modify your browsers user-agent ‘to ploy Facebook into thoughts you are on a well-matched OS.’
Here is how you can allow video calling in your Mac OS Lion.
On Safari, go to system preferences and under the advanced tab enable the developer menu. On the menu bar, click on the ‘Develop’ option. This will modify the user-agent to somewhat that will be well-matched with the Facebook video calling service.
On Google Chrome, you can also run the following command on terminal open/Applications/Google Chrome.app-args-user-agent=”
To activate it on Firefox, you have to download the plug in as in case of Chrome and navigate to http://facebook.com/