Focus is a Chrome extension designed to help users minimize distractions by blocking access to specific websites. Its primary function is straightforward: users can easily add websites they wish to block, either by entering the URL manually or by using the 'current page' button. The extension requires no registration, ensuring that user data remains private and uncollected.

In addition to blocking websites, Focus offers customization options, allowing users to choose between a black overlay with a "focus." message or automatically closing the tab of the blocked site. Changes to the blocking list are applied in real time, enhancing user experience without the need for page refreshes. Preferences are stored in the browser's local storage, although users should be mindful that clearing the cache or cookies may reset these settings.