It's very easy to use:
1) Play a video e.g. on youtube.com
2) Click the blue download arrow in the toolbar above
3) A "Save File" dialog appears where you can select the destination folder on your hard drive.
And so simply to download many videos:
1) Start a video search on YouTube, Google, WebWebWeb or go to your Facebook page, where YouTube videos are included.
2) Next to each video link there's a small blue arrow. Click it to download the video without leaving the page.
The download of protected videos (RTMP protocol) is currently not possible.
If you still want to download these videos, we recommend our free addon "Video Downloader Ultimate". You will find it on www.startpage24.com/videodownloaderultimate