Ad blockers strike back against Facebook

Two days after Facebook announced it would show ads on desktop to people using ad blocking software, Adblock is fighting back.

One of the most prominent pieces of software designed to block out ads online, Adblock released a new tool to keep social media free of adverts.

Facebook is planning to fight back.

"Ad blockers are a blunt instrument, which is why we've instead focused on building tools like Ad Preferences to put control in people's hands," a spokesperson said in a statement emailed to CNNMoney.

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