When you play a video in your browser it is usually stored in the browsers cache. If you are interested in saving the cached video then you can easily do that with the help of VideoCacheView. VideoCacheView is a freeware application which can be used to copy video files from the browsers cache.
VideoCacheView can be used to scan the cache of Mozilla-based Web browsers like Firefox and also Internet Explorer for video files. So instead of using a separate application to download the video file you can use VideoCacheView to retrieve the video file that is stored locally in the browser’s cache of your computer. VideoCacheView can also be used to retrieve SWF and audio(songs or Ringtones) files. You can also retrieve the data from the cache of Safari Web browser and Google Chrome.