Download for Google Chrome
Quoted from FAQ/Help of StayFocusd Extension.
StayFocusd is an extension for Google Chrome that helps you stay focused on work by restricting the amount of time you can spend browsing time-wasting websites. Once your allotted time for the day has been used up, the sites you have blocked will be inaccessible until the next day.
Why use StayFocusd?
Because you're human.
You sit down at the computer, and you swear you'll be productive. Next thing you know, it's twelve hours later. You've checked your email, updated your Facebook status, browsed the trending topics on Twitter, read your RSS feeds, looked up your favorite band on Wikipedia, vanity googled yourself, cyber-stalked your ex, your ex's lover, and several high-school crushes, and lost a week's pay playing online poker.
What you haven't done is WORK.
The fact is, it's very hard to stay focused on work or school when you have all the world's information, news, music, and *cough*porn*cough* at your fingertips. Sometimes self-control is in short supply, and you need a little help keeping on track.
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Do you collect any information about my browsing habits, the sites I visit, etc.?
Nope. All StayFocusd tracks is which sites are in your blocked/allowed sites lists, and the amount of time you have spent on them for the day. All of this data is stored on your local computer -- absolutely nothing is transmitted off your computer.
Quoted from FAQ/Help of StayFocusd Extension.