FocusFlow: Task-Based App Blocker

About

FocusFlow is a simple productivity extension that keeps you honest. Before you can browse the sites that pull you off-track, you have to finish your work first.
How it works
Set the tasks you need to complete — mark them as recurring if they repeat every day (like checking email or a morning routine), or leave them as one-time goals for today. Add the websites that tend to derail you. FocusFlow blocks those sites until every task is checked off. Once you're done, everything unlocks automatically.
Key features

Block any website until your to-do list is clear
Mix recurring daily tasks with one-off goals
Automatic daily reset — recurring tasks reappear each morning, one-time tasks clear out
Default blocks for the usual suspects: Facebook, Twitter, YouTube, Instagram
Clean, lightweight interface with no accounts or sign-up required
Works entirely offline — your data stays in your browser

Who it's for
Anyone who finds themselves opening Twitter when they meant to write a report, or watching YouTube when a deadline is two hours away. FocusFlow removes the option until you've done the work.