Not targeted based on my browsing history. Really.
I just noticed an interesting page where Facebook discusses how they use browser cookies. The uses vary from keeping you logged in to remembering what language you use.
Here’s how Facebook describes their use of cookies for advertising purposes:
Things like cookies and pixels are used to understand and deliver ads and make them more relevant to you.
For example, we may read a cookie that tells us you’re logged into Facebook so we can show you ads that may be interesting to you on Facebook or other websites. We may also use a cookie to learn whether someone who saw an ad on Facebook later visited the advertiser’s site. Similarly, one of our partners may use a cookie to determine whether we’ve shown an ad and how it performed. We also may work with a partner to show you an ad on Facebook after you’ve visited the partner’s site and this may involve the use of cookies.
It’s no surprise that Facebook uses cookies for ads they may show on or off of Facebook, including to measure effectiveness. What isn’t mentioned is the use of cookies related to the millions of sites with Facebook “Like” buttons and other social widgets. That would be a big omission if Facebook was actually using your browsing history to supplement your advertising profile.
If and when they Facebook does start tracking in that way, keep an eye on this page.