How To Block Websites In Firefox Using The BlockSite Add-on

Whether you want to protect your children from visiting suspicious websites or you want to deny access to websites for any other reason, BlockSite extension for Firefox is the right choice for you. It blocks sites that have been added to its blacklist, but it can also be set up to disable any links to the blocked sites by showing nonfunctional text instead of hyperlinks.

Step 1

Open your Firefox browser.

Step 2

From the horizontal main menu of Firefox, select Tools>Add-ons (if you do not see the menu, press the Alt key on your keyboard to appear.)

How To Block Websites In Firefox Using The BlockSite Add-on

Step 3

Go to Get Add-ons on the left side of Firefox.

How To Block Websites In Firefox Using The BlockSite Add-on

Step 4

On the top-right corner type “blocksite” in the search bar and hit “Enter.”

How To Block Websites In Firefox Using The BlockSite Add-on

Step 5

Look for the BlockSite add-on and click the install button.

How To Block Websites In Firefox Using The BlockSite Add-on

Step 6

After installation completes you will be prompted to restart Firefox.

Step 7

After Firefox restarts, go to Tools>Add-ons, and select the extensions tab on the left side of Firefox.

How To Block Websites In Firefox Using The BlockSite Add-on

Step 8

Look for BlockSite extensions you’ve just install and click on the Options button.

How To Block Websites In Firefox Using The BlockSite Add-on

After the pop-up window appears, make sure the “Blacklist” button is ticked, as well as “Enable BlockSite,” “Enable warning messages” and “Enable link removal.”

Step 9

Click the Add button, enter the URL of the website you would like to block, then click OK. Repeat to add more sites, or click the Clear button to delete the list.

How To Block Websites In Firefox Using The BlockSite Add-on

Once the list of blocked sites is complete, click OK and restart Firefox.

Step 10

The result.

How To Block Websites In Firefox Using The BlockSite Add-on

Optional Step

If you would like to keep other users from deleting blocked websites or changing the settings in BlockSite without your permission, check Enable authentication and enter a password.

 

How To Block Websites In Firefox Using The BlockSite Add-on