How do you block a website and block all hyperlinks which refer to that website? BlockSite, an add-ons for Mozilla Firefox will help you to do this, let's see the review below here which taken from its official page.
BlockSite is an extension, which automagically blocks websites
of your choice. Additionally, this extension will disable all
hyperlinks to these websites, by just displaying the link text
without the clicking functionality.
This extension should by no means be used for parental control
or access control purposes, just because it isn't secure and
can easily be disabled or even removed.
This extension adds the site blocking functionality that was
removed from Adblock Plus.
Interested? Download this add-ons to your Mozilla Firefox