Youtube Watchmarker V3 Remake

Automatically mark YouTube videos you’ve already watched - now with Manifest V3 support.

Many users encounter the inconvenience of beginning a YouTube video, only to realize partway through that they have already viewed it. YouTube Watchmarker addresses this issue by automatically tracking and marking previously watched videos. KEY FEATURES: 🎯 Smart Detection • Browser navigation tracking • Browser history synchronization • YouTube watch history synchronization 👁️ Visual Indicators + Options • Fade out thumbnails of watched videos • Convert thumbnails to grayscale • Display "watched" badges with dates • Hide progress bars on completed videos • Ability to remove videos from watched history 💾 Reliable Data Management: • Local database storage for privacy • Export/import functionality for backups • Hourly browser and youtube history synchronization 🔍 Powerful Search - Quickly find videos in your watch history with the built-in search tool The extension runs quietly in the background, automatically updating your watch status as you browse YouTube. All data is stored locally on your device. A refreshed version of the original Watchmarker for YouTube extension, now working with Manifest V3. Credit goes to the original author.