Adblock Plus is good if you need to block undesirable website elements to appear on web pages while you are surfing the internet. Subscribe a free filter service and add undesirable website elements to the block list with just a single click.
Use sudo apt-get install xul-ext-adblock-plus command to install this app from your Linuc terminal.
Visit Firefox >> Tools >> Add-ons >> Get Add-ons >> Search All Add-ons >> AdBlock Plus to add Addblock extension to your Firefox web web browser.