Live data from Hacker News

Facebook Privacy: Site Confirms It Tracks You After You Leave

abcnews.go.com

11–20 of 72 posts

Re: Facebook Privacy: Site Confirms It Tracks You After You Leave

#14
post #11

Would Ghostery be successful at blocking this? http://www.ghostery.com/

Yep. It blocks the Like buttons and other stupid widgets, which is how the cookies get sent. That also has the pleasant side-effect of drastically decreasing load times.

I highly recommend it. Be aware that it does block disqus by default, I usually whitelist that one.

Re: Facebook Privacy: Site Confirms It Tracks You After You Leave

#16
post #7
post #5

Earlier quoted context omitted.

There is not much use switching browser. They tracks you using cookies even if you dont login(like button and other plugins) You need to block/remove all the facebook related cookies.

Cookies do not cross browsers. If he's using a second browser, Facebook cannot read the cookies set in the first browser. They could use some IP matching logic or something, but it would be prone to a lot of false positives.

I believe this isn't always the case. If you're using multiple browsers in OS X all built on Webkit for instance, they share the same cookie store.

Firefox and multiple firefox profiles isolate cookie storage and I also use Fluid on OS X to build site-specific browsers. The paid version offers a feature to isolate cookie storage within each app.

Re: Facebook Privacy: Site Confirms It Tracks You After You Leave

#18
post #11

Would Ghostery be successful at blocking this? http://www.ghostery.com/

Yep. It blocks the Like buttons and other stupid widgets, which is how the cookies get sent. That also has the pleasant side-effect of drastically decreasing load times. I highly recommend it. Be aware that it does block disqus by default, I usually whitelist that one.

I had a few problems with the blocking when actually going to the sites in question. I believe I had to unblock Google Plus, Google Analytics and Facebook when actually visiting those sites.

However, I'm happy that most of the time it prevents the annoying features of a page from loading.

Re: Facebook Privacy: Site Confirms It Tracks You After You Leave

#19
post #16
post #7

Earlier quoted context omitted.

Cookies do not cross browsers. If he's using a second browser, Facebook cannot read the cookies set in the first browser. They could use some IP matching logic or something, but it would be prone to a lot of false positives.

I believe this isn't always the case. If you're using multiple browsers in OS X all built on Webkit for instance, they share the same cookie store. Firefox and multiple firefox profiles isolate cookie storage and I also use Fluid on OS X to build site-specific browsers. The paid version offers a feature to isolate cookie storage within each app.

"I believe this isn't always the case. If you're using multiple browsers in OS X all built on Webkit for instance, they share the same cookie store."

If that's true then it's utterly insane. This StackOverflow question from 2008 seems to confirm what you're saying, though:

http://stackoverflow.com/questions/364219/how-can-i-have-mul...

I really hope it isn't still the case...

Re: Facebook Privacy: Site Confirms It Tracks You After You Leave

#20

Earlier quoted context omitted.

Yep. It blocks the Like buttons and other stupid widgets, which is how the cookies get sent. That also has the pleasant side-effect of drastically decreasing load times. I highly recommend it. Be aware that it does block disqus by default, I usually whitelist that one.

I had a few problems with the blocking when actually going to the sites in question. I believe I had to unblock Google Plus, Google Analytics and Facebook when actually visiting those sites. However, I'm happy that most of the time it prevents the annoying features of a page from loading.

I've never had that problem. That'd be a pretty big flaw in ghostery if that was the case.
Post reply on HN