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How can this website circumvent Firefox's privacy settings?
A newspaper called Folha seems able to store something in my local drive and also to access it later in order to identify me even though I have blocked all of its cookies (and also checked the page source code and identified possible third party cookies, blocking them as well).
But it gets creepy: when I open a new private window, it still identifies me.
And creepier: when I use a second (fresh) profile, it still identifies me.
And worse: it afects all other browsers installed in my computer as well!
An example of URL in which this happens (after other articles have been visited until finally reaching the site's paywall) is http://www1.folha.uol.com.br/colunas/redesocial/2015/01/1574239-liberdade-igualdade-e-fraternidade-na-franca-para-quem.shtml
It could be a server-side mechanism, but I have a dynamic IP, not a static one.
Since Firefox is my primary browser, something "got in" to my computer through it and from this website. What could it be? And how could one prevent it on this and other websites?
(There's a suspicious script linked in the page's source, hosted at http://tag.navdmp.com/tm23947.js, but I can't tell what it does.)
when i accessed the http://www1.folha.uol.com.br/colunas/redesocial/2015/01/1574239-liberdade-igualdade-e-fraternidade-na-franca-para-quem.shtml link on my machine the first time, i get the paywall right from the start - so probably that's a policy change by the website an not a particularly sophisticated tracking mechanism...Read this answer in context 👍 1
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hello, which feedback do you get that indicates the site is identifying/tracking you?
Philipp, normally one would be able to read the article, but once you've reached a certain number of visits it blocks you from reading, dimming the article and showing this image in the center: http://f.i.uol.com.br/paywall/trj-acesso-restrito-limite-731x425-20141222.png ("Access restricted to subscribers and registered users, etc.")
That's what the three screenshots above show (sorry, I didn't make it clear, but the screenshots all refer to that exact link), and, by the way, here's a screenshot of a private browsing window of my Firefox's second profile doing the same: https://flic.kr/p/qve4qW
Please let me know if I can provide any other information.
when i accessed the http://www1.folha.uol.com.br/colunas/redesocial/2015/01/1574239-liberdade-igualdade-e-fraternidade-na-franca-para-quem.shtml link on my machine the first time, i get the paywall right from the start - so probably that's a policy change by the website an not a particularly sophisticated tracking mechanism...
I can see its using "window.localStorage.setItem(id,data); " Here is some explanation from http://cssmenumaker.com/blog/localstorage-basics
It really seems to be an article-related (or section-related) issue, because http://www1.folha.uol.com.br/mercado/2015/01/1574176-acionistas-minoritarios-brasileiros-decidem-ir-a-justica-contra-petrobras.shtml opens correctly, for example. So false alarm, I guess. (Better this way, though...) Thank you both!