How to download videos from facebook.
If you have internet download manager installed in your PC but it does not download videos form you tube, here is the solution.
Open you facebook and click on address bar and edit and change the “web” of web.facebook.com to “m” and press enter.
Your browser will show your facebook page in mobile format.
Now play the video, the internet download manager pop up for downloading will appear, click and downloading will start.