How to Block Websites on Mac (While You Work)

By NUR Technologies · October 28, 2026 · 5 min read

The sites you open without thinking are the ones that break your focus. A Mac can block them. The question is whether you want them blocked all day or only while you are working.

Option 1: Screen Time (built in, always on)

In System Settings, open Screen Time, then Content & Privacy, and look for the Web Content setting. Choose to limit adult websites and add the sites you want blocked to the Never Allow list. Menu names vary a little between macOS versions.

• Good: free, nothing to install, and it applies in the browser.
• Limit: it blocks those sites all the time, not only when you are working, and you can switch it off yourself in one click.

Focus modes (Do Not Disturb) are different: they silence notifications, they do not block websites.

Option 2: Pomorito (only while you focus)

Pomorito blocks the apps and sites you choose during a focus session and lets them back afterwards. It supports Chrome, Safari, Brave, Edge, Arc and Vivaldi.

1. Choose what to blockIn Pomorito, pick the apps to hide or close and the sites to block.
2. Allow the browser permissionFor site blocking, macOS asks you to allow Automation for each browser the first time.
3. Start a pomodoroWrite the one task you will do and start. While you focus, a calm page replaces the blocked sites and tells you the time left.

Good to know

• Site blocking in Pomorito does not cover Firefox.
• It is a tool for self-control, not a lock: you can still choose to stop.