Video DownloadHelper - Browser extension to download videos from the Web

FastestTube - Youtube fastesttube downloader will make your internet expirience faster harder beter stronger.‎How to merge video and audio .

FlashGot - FlashGot is a browser extension for Mozilla Firefox that is designed to make it easy to download a whole batch of files in one go. The extension is open source and free to use, but it is no longer compatible with the most recent version of Firefox.

ClipGrab - A friendly downloader for YouTube and other sites

Flash Video Downloader - Flash Video Downloader is a popular extension for Google Chrome browser for downloading wide range of files over the internet.

Video Downloader All - Video Downloader All is the name of a free to use and state of the art downloader that is available in form of extension for Google Chrome web browser.