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That’s not fully protect you. They still can match short living third party identifiers with their domain cookie or device_id from app. It is not 1-1 matching but works relatively good with modern itp.
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This would work for an ad shown on ChatGPT and then clicked on (or in the ChatGPT app).

But it would not give ChatGPT information about which other sites are visited.

Of course there would be non-cookie options like fingerprinting (also via IP) that would allow tracking non-the-less.

So you might be talking with OpenAI about your marriage problems and then based on the IP the OpenAI ad network would start showing ads for divorce lawyers on unrelated sites you browse to that display ads.

The solution to that would be using a VPN.

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Not an accurate summary. That link actually says:

> Google Chrome doesn't block third-party cookies by default, only in Incognito mode, or when users explicitly set it to block third-party cookies via chrome://settings.

Looks like the settings let you block all third-party cookies and add exceptions for specific sites, which seems a bit awkward but could be made to work.

Alternatively, you could run OpenAI in its own profile, or look into what extensions might do.

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>Looks like the settings let you block all third-party cookies and add exceptions for specific sites, which seems a bit awkward but could be made to work.

The fear over blocking third party cookies breaking stuff is severely overstated. I have it disabled by default and I don't think I've ever seen any website breakages. The most is office365 nagging me to click on links so it can authenticate across domains.

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I think that if they don’t block by default, is quite significant. Chrome + Edge has superior marketshare and then add the % people who have no idea what these mean and don’t change defaults.
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I was going to say, wasn't this supposed to be the default in Chrome by now? But Google reneged on it two years back:

https://www.cbsnews.com/news/google-third-party-cookies-chro...

This disgusts me more than any of their recent news. There needs to be a lot more pressure on them to phase this out.

Maybe this article will be the small snowball that gets that started...

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> Google Chrome doesn't block third-party cookies by default, only in Incognito mode

And the focus on cookies only is also intentionally misleading. Tracking is not just cookies. Chrome will track you in Incognito mode.

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