BlockNest

Popup with Settings – Site & Keyword Blocker

This extension helps you stay focused and in control by blocking websites and content based on keywords. You can easily manage blocked, whitelisted, and permanent keywords from a password-protected settings page.

🔹 Features:

Block websites by matching keywords in their title or URL

Maintain a whitelist to allow exceptions

Add permanent keywords that cannot be removed without your password

Lock keywords (requires password confirmation 3 times) so they cannot be deleted

Import / Export your settings in JSON format for backup or sharing

Responsive popup & settings page with a sidebar for easy navigation

Supports blocking of dynamic sites such as Telegram channels (SPA navigation)

🔹 Technical Details:

Runs in the background and automatically closes tabs that match blocked rules

All data is saved securely using storage.local

Password protection ensures only you can change settings

Lightweight and privacy-friendly – no data is sent outside your browser