ProPublica’s new Chrome extension wants to decipher what Facebook thinks it knows about its users

Facebook, the most-used social network in the world, is also one of the least understood. A data juggernaut, Facebook has spent the better part of the last decade sucking up as much information about its users as possible — what they've liked, what websites they've visited, and even where they…

28 Sep 2016 ... What's less clear is how Facebook uses that data to actually make ... The tool, an extension for Google's Chrome browser, let users see exactly ...

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