SkipSeen — Skip Watched Videos on YouTube per Keenan Kaufman

Does YouTube keep autoplaying videos you've already watched? SkipSeen automatically skips already-watched videos during YouTube autoplay, so every autoplay lands on something new instead of a rerun.

It quietly keeps track of what you've seen and steps past those videos in the Up Next queue when autoplay kicks in.

Features
* Automatic skipping — during autoplay, already-watched videos are skipped for you.
* On/off toggle — turn skipping on or off any time from the toolbar popup.
* Watch stats — see how many videos you've skipped this session.
* Skip log — review which videos were skipped, with thumbnails.
* Clear history — wipe your watched-video history with one click.

Privacy
SkipSeen works entirely on your own device. Your watch history is stored locally in your browser and is never sent anywhere. No accounts, no tracking, no external servers.

Permissions
* storage — to remember which videos you've watched and your settings, on your device only.
* youtube.com access — so the extension can detect the current video and skip when needed.