this post was submitted on 26 Sep 2021
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Privacy

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Anyone have any good information on using ublock origin with tor browser? Does it compromise my anonymity?

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[–] MarcellusDrum@lemmy.ml 5 points 3 years ago (1 children)

It makes sense for it to have a built in ad-blocker. Any idea why they don't do that?

[–] Lunacy@lemmy.ml -2 points 3 years ago* (last edited 3 years ago) (1 children)

Hi! It doesn't make sense at all. Blocking ads & trackers is not a good approach to achieve privacy. It's quite weak actually for many reasons..

First of all, because enumeration badness doesn't work; it's not possible to create a list of every possible "malicious domain". And even if it was possible, websites could develop their own first party tracking and then share the information to third parties like Google or Facebook.

Second of all, because apps and websites can detect what domains are blocked, thus they -or malicious actors- will able to uniquely identify users more easily.

Third of all, because extensions add more attack surface since they use privileged script in order to work.

That's why Tor doesn't use any ad-blocker.

For more information about enumeration badness and browser tracking you can see here and here