LeechBlock NG (Next Generation) for Firefox is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
There are some browsing routines frequently jump between different sites within the same block set, so this option can enable the uses of delay page without constant interruptions.
There are some browsing routines frequently jump between different sites within the same block set, so this option can enable the uses of delay page without constant interruptions.