[bluefinity]

That would be... disturbing. Fortunately it's not true, as you can see for yourself with the chrome developer tools.

[creshal]

On the other hand, Windows 10 collects these data by default, according to their privacy statements.

[interfixus]

It was true at one stage, according to official acknowledgement form Facebook. There's a discussion somewhere here on Hacker News. Can't find the link right now.

[davidgerard]

Not quite. Here's a blog post from someone who read the study, and quotes from it:

http://www.dailykos.com/story/2013/12/16/1263165/--Facebook-...

[interfixus]

I stand corrected. Thanks.

[davidgerard]

I didn't realise either until I read that, fwiw :-)