Deep work mode for Chrome.
Lock the browser to one tab for as long as you need. No blocklist. Just the work, the timer, and a focus wall.
What deep work needs from a browser.
- One thing on screen. Not a list.
- Interruption cost is 10–20 minutes per switch.
- Browsers are bad at this by default.
Anchor to the work tab.
- Name your session — “Draft Q3 strategy memo.”
- Focus wall replaces every new-tab attempt.
- Restored exactly when the timer ends — colours, titles, order.
Pick a block. Earn the next one.
- 60 min
Single block. Good for a bounded task — one PR review, one section of a memo.
- 90 min
Aligns with ultradian rhythm (Kleitman, 1980s). Two of these in a morning is a strong day.
- 2–4 hr
Long-form writing, research, hard debugs. One block, undisturbed.
Low entry friction. High exit friction.
OneTabFocus inverts the default browser dynamic. Three clicks to start. A five-second hold to leave.
Related reading: How to Stop Procrastinating — Science-Backed Guide · How Many Hours of Deep Work Per Day Is Realistic? · How to Build a Daily Focus Streak That Sticks · What Is Deep Work? The Beginner's Guide · How to Stay Focused at Work — A System That Holds
The browser, made for one thing.
Free to install. Pro unlocks unlimited focus time, Pomodoro, and the heatmap.
- 7-day Pro trial on install
- No card required
- Works on day one