SaveFrom.net Helper is a browser extension, which if installed on your Windows PC, will enable you download files from YouTube, Facebook, Vimeo, VK.com and more than 40 other just in one click.
With it, you can download videos directly from embedded YouTube players. All you just need to do, is to hover a cursor on it and a "Download" button appears. Thereafter, you can save the video in the desired quality.
You can also use it to download videos from Facebook.com with a click from user pages, news feeds, or even comments. Move the mouse pointer over the link - a green arrow will appear. Click the arrow and choose the preferred video quality.
For Vimeo.com and Dailymotion.com, the extension forces a "Download" button to appear on the page, where you're watching a video file.
You can download SaveFrom.net Helper extension here.