There are many free video download software available, like Leawo Free YouTube Downloader, or free web services to download and convert YouTube videos for PowerPoint, like http://vixy.net/.
Since Firefox is such a popular web browser for its features of speed, security and customization, I’d prefer to introduce 5 add-ons of Firefox to help you quickly download YouTube videos for FREE. Then you can convert the video and import it into PowerPoint.
After you installed the Firefox, run it, click “Tools” on the toolbar, on the dropdown menu, choose “Add-ons”.
In the popup window you can search and install the following add-ons to download YouTube videos freely.
1. Ant Video Downloader and Player
With the Ant Video Downloader, you can download video from Youtube or any other streaming site. Rare are the sites you will not be able to download from. After installing Ant Video Downloader and Player, you can see it on the statusbar, when you watch a video on YouTube, the button “Download” will twinkle, click it and the video will be downloaded to your computer.
2. UnPlug
UnPlug scans web pages and tells you where media players are getting their data from, and allows you to easily save the media file. The icon of UnPlug will be at the statusbar, click it, the link of the video will be decrypted, click “Download” to start downloading.
3. Download Helper
An easy way to download and convert web videos from hundreds of YouTube-like sites. This works also for audio and picture galleries. Find your video on YouTube, the icon of Download Helper will be twinkling, click the tiny triangle button on the right, on the drop down menu, you can click on the links to download the video.
4. NetVideoHunter Video Downloader
This addon is a download helper tool that let you easily download videos and music from almost any video-sharing site. Click the incon and a window will come up, press the “Download” button to get the video you want.
The four add-ons above are plug-ins created by people all over the world, it enables user to change Firefox to meet their needs, while the following makes it possible for changing the function of the web pages.
5. Greasemonkey + Scripts
Greasemonkey is an add-on of Firefox, unlike others, it is a small platform to be more precisely. It could only work when a script is installed. Many people use this add-on because of the high customization it brings, and the scripts can be quite small while powerful. Many scripts could download videos from YouTube, just to name a few: Download from YouTube, Download YouTube Videos as MP4, YouTube Video Download, etc.. By using this method, a download button will directly added to the web page for you.
Of course there are hundreds more add-ons which can download videos from YouTube, here just picks up the most popular ones. It’s up to you which one you will choose. After downloading the videos to your computer, the video converter can help you to import the any video formats into PowerPoint.