Work with full focus for 25 minutes, then take a 5-minute break. After four rounds, take a longer 15-minute break. Short, fixed sessions make it easier to start and to keep going.
Pick a plan (25/5, 50/10 or 15/3) and press START. A chime marks every change between focus and break, and the tab title shows the phase and the time left, so you can work in another window.
Press SKIP (or S) to jump to the next phase, and RESET (or R) to start over. Allow notifications to be told when a break starts even if the browser is minimized.