Download Youtube videos without internet download manager.we can use two alternate ways
1)Keepvid.
2)Youtube video downloader extension.
1)Keepvid:
www.keepvid.com is a website it runs with java application it generate video links in number of format
for your youtube video url.
you just cope your youtube video url and past in into keepvid.com. it generates video links click and download your recommended format.
2) Youtube video downloader...
