http://www.proginosko.com/leechblock.html
https://addons.mozilla.org/en-US/firefox/addon/4476
Kod: Zaznacz cały
LeechBlock is a simple productivity tool: an extension for the Firefox web browser designed to block those time-wasting sites that can suck the life out of your working day. (You know: the ones that rhyme with 'Blue Cube', 'Pie Face', 'Space Hook', 'Hash Pot', 'Sticky Media', and the like.) All you need to do is specify which sites to block and when to block them.
Co ciekawe napisal to pewien kalwinista.
Aha - dodaje forum protestanci do stron blokowanych.
Jak kalwinista to trzeba zainstalować, wyjścia nie ma 
