: Extensions like Show YouTube Dislikes and Unlisted Videos (Firefox) focus on restoring features YouTube removed or obscured. They often rely on external databases where users have voluntarily shared unlisted links they've found.
An unlisted video is accessible to anyone with the exact URL, but it won’t be indexed or suggested by YouTube. Common uses include: show unlisted videos youtube extension
: While not a dedicated extension, it is a powerful "manual" way to find unlisted content. If you have a dead link to an unlisted video, plugging it into the Wayback Machine can often surface a snapshot of the page or the video file itself. Why Unlisted Videos Are Hard to Find : Extensions like Show YouTube Dislikes and Unlisted