How to block website on firefox
1- Open Firefox, click "Tools" then "Add-ons." Click "Get Add-ons" and in "Search All Add-ons." Type "blocksite" in the search bar and hit "Enter." 2 - Click the "Install" button next to the entry for BlockSite. Allow the add-on to download (usually fewer than 5 seconds). Close “Firefox” 3- Open “ Firefox” again then go to "Tools," then "Add-ons," then click the BlockSite "Preferences" button after Firefox restarts. Make sure the "Blacklist" radio button is ticked, as well as "Enable BlockSite," "Enable warning messages" and "Enable link removal." 4- Check "Enable authentication," then enter a password if you would like to keep other users from deleting blocked websites or changing the settings in BlockSite without your permission. 5- Click the "Add" button, enter the URL of the website you would like to block, then c