Facebook collects data on you even if you don’t have an account - Vox

Facebook collects data on you even if you don’t have an account - Vox: One of the more interesting takeaways to come out of Facebook CEO Mark Zuckerberg’s multi-day congressional testimony last week was confirmation that the social giant collects data from people online even if they don’t have a Facebook account. And there’s little you can do about it.

Grrrr, this is so annoying. The other day my browser started working superslow and it was because Facebook was collecting my data, even though I don't have any active accounts with them.