Procrastination Blocker is a free Chrome extension designed to enhance productivity by filtering out non-productive websites. Unlike traditional blacklisting methods, this tool employs a learning algorithm that adapts based on user input. Users can mark websites as productive or non-productive, allowing the extension to refine its classifications over time. This feature aims to distinguish between useful content, such as programming tutorials, and distractions like entertainment videos.

The latest version 0.2 introduces an options page for customization, enabling users to set thresholds and seed base keywords for more precise filtering. This makes the extension not only user-friendly but also tailored to individual needs. While the underlying algorithm may not be highly sophisticated, it offers a lightweight and engaging experience as it evolves with user interaction, making it an interesting choice for anyone looking to minimize distractions while browsing.