Skip to content
Chrome extension for discouraging the use of attention-sucking websites
JavaScript HTML CSS Shell
Latest commit cee31cb Mar 17, 2015 @gintas Merge pull request #13 from batcave/master
Added a daily delay reset option



Crackbook is a Chrome extension for discouraging use of attention-sucking websites such as Facebook or Reddit. The idea behind Crackbook is that delaying access to the website is more effective than straight blocking because you are less likely to just disable the block after a while.

The extension will delay every hit to blacklisted site. The delay is just a few seconds initially, but it increases slightly on every hit.

Unless disabled in settings, the extension will collect and anonymously submit usage data. Aggregate statistics are available at

The junk page counter resets daily.

The extension is available on the Chrome Store at:

The source code is available under the MIT license (see the file LICENSE). It is hosted at (patches welcome!).

Copyright (C) 2011 Gintautas Miliauskas


hamburger-19px.png and hamburger-128px.png are modified versions of, which has been put into public domain by the author.

carrot-19px.png is a modified version of , which is in the public domain.

wrench.png is, which is provided under the Creative Commons Attribution 3.0 US licence by FatCow Web Hosting at

stats-256.png is available from under the CC BY-SA 3.0 license.

Something went wrong with that request. Please try again.