Open up Chrome and navigate to this URL: http://mandel-design.xf.cz/Chrome-Youtube-Downloader/
Click the link in the grey box to download Ver. 2.6.19 Download Now!
Right-click on the Chrome-YouTube-Downloader... file and select Extract.
For some reason, the person who packaged the downloader put it inside two ZIP files. That's why you need to do this a second time.
This will show you the chrome-youtube-downloader-2.6.19.crx file. NOTE: Depending on your configuration, you may not see the CRX extension. But there is only one file and it's "icon" will look like a blank sheet of paper and under the TYPE column, it should say CRX.
Click the 3 horizontal bars in the upper right corner and select Settings
In Chrome's settings, there are three sections: History, Extensions, and Settings. Click on Extensions.
Position Windows Explorer so that it is a smaller window in front of Chrome (which should be displaying the Extensions area of Chrome's settings).
Drag-n-drop the chrome-youtube-downloader-2.6.19 into the Chrome window as displayed above and let go.
A new Chrome tab will appear and you should see a yellow bar indicating that the Chrome YouTube Downloader is now installed.
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