Facebook is using full-page newspaper ads to criticize an upcoming Apple policy that will give iPhone and iPad customer the choice over whether advertisers can track them. If the policy change goes ahead, it argues, these sorts of companies will be unable to find and target customers with personalised ads. If they can’t do that, their sales will plummet, “adding to the many challenges they face right now,” the company argues in the ad, which Bloomberg reports will be running in the New York Times, Wall Street Journal and Washington Post papers.