You tube is great channel to watch videos online and also allow you to watch video with full screen but in that case it took the whole space and we are not able to perform work,we are bounded to to one thing .But what about if you are able to see it only in your web browser window space instead of watch in full screen.
To make that thing you don't have to do to many step or download any tool to make it happen just you have to do is ,some editing in URL of video you like to watch.let we have look below:
Original URL – http://www.youtube.com/watch?v=5qF_qbaWt3Q
Modified URL – http://www.youtube.com/v/5qF_qbaWt3Q
And you're done ,now but the below link in address bar and Hit ok you will get window like shown above .So enjoy and don't forget to share your experience