DownloadHelper: the easy way to Web videos. Download tons of videos from most of YouTube like sites. DownloadHelper is a way to discover many sites showing Web videos from all around the world. They are here ! DownloadHelper is also a free Firefox extension for downloading and converting videos from many sites with minimum effort. Install the extension ! Using DownloadHelper, you can easily save videos from most of the popular video sites. (Click here for lists of supported sites). It is also possible to capture all the images from a gallery in a single operation. Note that DownloadHelper does not break any real protection implemented on the sites. It gives easier access to available content that will be downloaded by your browser anyway. With some exceptions, downloaded videos must be kept on your disk for personal use and are not to be shown on other websites..