Block unwanted web sites using FireFox Extension

     When you surf the web, you can see there are so many unwanted sites or prohibited web sites for children. These sites contains adult contains. If your child use web for him or her education purposes, it is highly required to protect your child from surfing these adult web sites. Because it will damage future of your child. Also we can see that in some offices,universities and institutes some web sites like facebook are blocked.
    To block web sites we can found so many applications that may freely available or not. But here i am going to say about a free web site blocker  for your FireFox web browser. This is an extension for FireFox.

Go to this Link :   Site blocker extension

  Then click on the green button that says Add to Firefox. Then it will be installed on your Firefox web browser.
  Then go to tools tab and click on add-ons.
  Then select BlockSite.
  Then click on preferences.

 Then Set password and add web sites that you want to block.
  Additionally, this extension will disable all hyperlinks to these websites, by just displaying the link text without the clicking functionality.