Focus Mode by Bridget

FocusMode helps you concentrate by blocking distracting websites during your chosen focus hours. Set a schedule (start time, end time, and days of the week) and add sites to your block list. When you try to visit a blocked site during a focus session, a block overlay appears.

The popup shows a live timer of your current focus session, lets you start/stop sessions manually, and provides quick access to your block list and schedule settings. In strict mode, all sites not on your allow list are blocked.

FocusMode works locally in your browser. No data is sent anywhere. Blocking uses webRequest and webNavigation APIs.