No, You can not download thumbnails from non-public or unlisted videos applying our thumbnail grabber. Our YouTube thumbnail downloader only performs with publicly available videos. Personal or unlisted movies involve correct authentication which can be outside of the scope of the thumbnail extractor Software. Our mission is always to empower https://download-youtube-thumbnai91111.blogdon.net/the-2-minute-rule-for-youtube-thumbnail-grabber-54425942