Block Sites

Blocking Sites helps you stay focused by blocking distracting websites and reducing attention-grabbing content across popular platforms. Whether you're studying, working, or simply trying to build better digital habits, Blocking Sites provides a clean, privacy-first experience without unnecessary complexity.

Features:

• Block websites with flexible rules • Block pages containing specific keywords • Schedule Focus Hours or enable blocking at all times • Redirect blocked websites to a custom page of your choice • Beautiful focus screen with rotating motivational quotes • Password or text-challenge protection for important settings • In-app distraction blocking for supported websites, including YouTube, Instagram, TikTok, Facebook, X and Snapchat • Choose exactly which features to hide, such as Shorts, Reels, Comments, Explore and more • Light, Dark and System theme support • Clean, modern interface designed for speed and simplicity • Works entirely offline for core blocking features

Privacy:

Blocking Sites is designed with privacy in mind. Your settings, blocked websites and preferences remain on your device. The extension does not require an account, does not upload your data to external servers and does not collect your browsing history.

Where it works:

Blocking Sites works on most normal websites. Like all browser extensions, it cannot run on certain browser-protected pages such as about:*, the Firefox New Tab page, Add-ons Manager, Settings pages and other restricted browser pages. These limitations are imposed by Firefox itself.

Why I built it:

I built Blocking Sites because many website blockers felt cluttered, overly complicated or focused on collecting user data. My goal was to create a blocker that is simple, dependable and pleasant to use, while giving users precise control over what distracts them online.