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A Firefox extension that helps you track your progress through YouTube educational content with automatic chapter detection and progress visualization.

Features:
- Automatic chapter detection from video descriptions
- Real-time progress tracking with visual indicators
- Chapter navigation - click to jump to any timestamp
- Progress visualization showing completed vs. skipped sections
- Session tracking counts how many times you've watched each course
- Local storage - all data stays in your browser
- Dark mode support adapts to your browser theme

Perfect for online courses, tutorials, educational content and music playlists with timestamps. The extension appears as a clean sidebar showing your progress through each chapter, making it easy to resume where you left off.

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Developer Comments

A concise technical overview that highlights:

Purpose: YouTube learning enhancement
Technology: Vanilla JavaScript + WebExtensions API
Security: Local storage only, no external calls
Scope: YouTube watch pages only
Performance: Minimal permissions, client-side processing

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