AcFun Video Download is a streamlined video downloader specifically designed for the AcFun platform. This Firefox extension allows users to download videos directly without the need for additional software installations. The process is straightforward: log in, navigate to the video details page, and click to download. Once the download is initiated, a save dialog box will appear, allowing the user to store the video in the default download folder of the browser. For compatibility, videos downloaded in the .ts format can be converted to .mp4 format using conversion software if necessary.

This tool operates under a subscription-based model and adheres to the MIT open-source license. It emphasizes the importance of copyright, noting that downloaded videos are for offline viewing only, unless the video owner has granted permission for further use. Users are encouraged to respect the rights of content creators and ensure compliance with copyright laws when using this tool.