Retrieving Cached YouTube videos in FireFox

FireFox Extensions like VideoDownloader make it easier to download flv videos from sites like YouTube. But what if you've already viewed/buffered the video on your browser and now want to save it. At times, VideoDownloader uses the exact same flv url as what you'd already watched - say, something like

http://lax-v182.lax.youtube.com/get_video?video_id=57N_mTbjynA

and hence the browser doesn't have to retrieve the video once again. However, at times, it uses a different url - which essentially means that your browser, unaware of the fact that the content is one and the same, is going to fetch the whole of it once again!

Here's what you can do if you are trying to retrieve cached videos on FireFox:
* Go to the directory C:\Documents and Settings\\Local Settings\Application Data\Mozilla\Firefox\Profiles\.default\Cache
* Over here you'll find cached objects without extensions - so there's some hit and trial involved here:
One approach => Sort the cached files by "Date Modified" and then by "Size"

Copy suspected files to a temporary folder and add a ".flv" extension. Open them with a flv player (I'd recommend GOM player) and try your luck.

Alternatively you could use extensions like CacheViewer to explore your browser cache(One caveat: this extension takes around 10 seconds to open up).