Fix installation of codec c or codec v plugin to watch videos

You ever had this problem when try to watch videos online it often says You need to install the codec-c or codec-v plugin!
Is this legitimate or a virus? how do I watch the videos?

The Answer is :

The 'plugin' is not needed to watch videos, It's just an ad covering the video so suggestion is DO NOT INSTALL! 

You can get rid of it by following this tutorial/video:

This will work like a charm! The important thing is that the 'plugin' is most probably a virus so again don't install!