Twitter's better-than-expected financial results weren't enough to cushion the company's stock price.
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Cox left Facebook last March amid the company's efforts to become a more privacy-focused platform.
The goal is to put information from authoritative sources in front of Facebook users, the company said.
In the US and Canada, Facebook gained roughly one million new daily active users over Q1.
The company is emailing 677,775 users who either followed, retweeted or liked a tweet from the more than 50,000 Russia-linked election bots.
The initiative is in partnership with the National Center for Missing and Exploited Children.
Facebook's Oversight Board will now have the ultimate say on whether the permanent suspension of the former president's accounts should be upheld.
India has instructed Google and Skype to allow its government to monitor their customer data or face being banned.
The company's API helps developers write applications that accept credit card payments and create card-linked promotions such as digital coupons, virtual rewards, and loyalty programs.
According to a new report released by Tata Communications, one in four Americans admit they wouldn't survive more than five hours without using the Internet in their daily life.