A focus timer that actually blocks the site

Start, pause and cancel a session from the extension popup

Blocked sites show a full-page interstitial with the time remaining, not a broken page

The block list is editable only when no session is running

Ending a session early requires typing a sentence, not clicking a button

Sessions and interruptions are logged; a small page shows the week

Sync the block list across browsers with no account, via a shared secret

Requirements