Strict Pomodoro Extension for Chrome

"The Pomodoro Technique for time management is simple: work hard for 25 minutes without distractions, knowing that a 5 minute break is soon on its way. This extension helps you stay focused while you work by blocking the sites that can so easily distract us.

We pre-loaded the extension with a handful of popular distracting websites, but you can easily add new sites to the list, or, if you're daring, you can even create a whitelist of the *only* websites allowed during a work session. You can also change the lengths of the work and break timers - though I'd recommend against it: these times are default for a reason, so only change them if you're certain that they will make you more productive.

When we say "strict", we mean it. Once a work timer starts, there's no stopping it without straight-up disabling the extension or restarting the browser. This is for your benefit: I wrote this extension with myself in mind, and I know how tempting it can be to just give up when work gets too frustrating. Therefore, Strict Pomodoro actively discourages this behavior, though you can always disable the extension in case of emergency.

Stay focused, and have fun!"

https://chrome.google.com/webstore/detail/strict-pomodoro/cgmnfnmlficgeijcalkgnnkigkefkbhd/details