A useful free tool to integrate to your browser: the Ant Toolbar. It is based on the growing demand from internet users to be able to download the videos they can watch on popular sites such as YouTube, Google Video, Daily Motion, etc
Video Downloader Features :

- 1. Download videos from a variety of streaming sites such as Youtube and save them to your hard drive
- 2. Flash video player integrated with your browser : you can instantly play the videos you have downloaded, you can even play them when you're not connected to internet.
- 3. Easy to build a library of your favorite videos centralized in one location, no more saving video URLs to your favorites and finding the video deleted.
- 4. AntRank Internet Traffic indicator, display domain global world ranking, with detailed statistics.
- 5. Detect any Flash video ! Thousands of supported tube sites
- 6. Contains no adware or spyware, and is totally free to use.

Download version 1.5 for : Internet Explorer and for Mozilla Firefox

FAQ :

I have installed the toolbar, but I don't see it?

Close your browser and restart it, the toolbar should now appear.

How do I download a clip from a video page?

Look for the DOWNLOAD button in the toolbar, clicking it should launch the download.
If the button is not activated you might have to click the play button in the video first.
If it still doesn't work, try closing the page, open it again, play the video, then click the download button from our toolbar.

Where can I open those clips that I have downloaded?

You can play them directly from your browser, by clicking the PLAYER button in the toolbar.

Are the videos downloaded to my hard drive?

Yes they are saved and stored on your computer's hard drive.

How to delete a downloaded video?

Bring up the integrated video player by clicking its button in the toolbar. Once there you should be able to delete any video by clicking the delete icon.
If it doens't work, you will still be able to delete the files manually.

Where can I find the video files?

The downloaded videos have a .flv extension.
You can find them in :

For Internet Explorer:
- Win XP before 08-18-08: C:\program files\ant.com\antbar\player\flv
- Win XP after 08-18-08: C:\Documents and Settings\__username__\Local Settings\Application Data
- Win Vista : C:\Users\__username__\AppData\LocalLow\ant.com

For Firefox:
- Win Vista : C:\Users\__username__\AppData\Roaming\Mozilla\Firefox\Profiles\__profile__\antbar
- Win XP: C:\Documents and Settings\USER\ApplicationData\Mozilla\Firefox\Profiles\__PROFILE__\antbar
- Linux : ~/.mozilla/firefox/__PROFILE__/antbar/
- MacOS : /Users/$USER/Library/Application Support/Firefox/Profiles/__PROFILE__/antbar
You should be able to delete or move them from there.

How to uninstall the ant toolbar?

Go to your control panel (start button > control panel) then Add/remove programs > Ant Toolbar. Simple!