You are probably using a that is blocked by ThisVid’s CDN.
The tool will show the available quality options (e.g., 1080p, 720p). Choose the version you want and click download. The extension will save the video as an MP4 file in your default downloads folder, usually inside a dedicated "THISVID" directory. thisvid private video downloader fixed
: Registration on ThisVid is frequently "temporarily closed". If you do not already have an account, downloading private (members-only) videos is currently impossible without an invitation or the uploader's direct link. You are probably using a that is blocked by ThisVid’s CDN