ニコ補助 - Download is a free Chrome add-on developed by GRN that allows users to generate download links for videos on NicoNico Douga. With this add-on, users can also download comments along with the videos.

One of the main features of ニコ補助 - Download is the ability to generate download links for both videos and comments. This feature allows users to save NicoNico videos directly to their devices for offline viewing. The add-on also automatically sets the file name based on the title of the video, making it convenient for users to organize their downloaded files.

Please note that the add-on supports HTTPS and is regularly updated to fix bugs and add new features.

Please be aware that downloading copyrighted materials without proper authorization is illegal and may result in criminal penalties. Make sure to read and agree to the terms of use before installing the add-on.