this post was submitted on 28 Aug 2024
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Firefox rolls out Total Cookie Protection by default to all desktop users worldwide | It is Firefox’s strongest privacy protection to date, confining cookies to the site where they were created (blog.mozilla.org)
submitted 2 months ago by ForgottenFlux@lemmy.world to c/technology@lemmy.world
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[–] Cosmicomical@lemmy.world 5 points 2 months ago (8 children)

Does this stop me from adding to my website an iframe to facebook where facebook can keep its cookies for my user? That would be great but I doubt it.

[–] monogram@feddit.nl 5 points 2 months ago (2 children)

IIRC an iframe contents is treated as a separate window, so cookies aren’t shared either

[–] Feyd@programming.dev 6 points 2 months ago (1 children)
[–] monogram@feddit.nl 2 points 2 months ago

That’s horrific WHY?

do not add any event listeners for message events. This is a completely foolproof way to avoid security problems. 🤡🤡🤡🤡🤡🤡🤡🤡🤡🤡🤡

[–] Cosmicomical@lemmy.world 2 points 2 months ago (1 children)

Sure, but the separate window can be on a different domain. Now you have a way to share cookies across multiple websites on different domains if all of them include an iframe to this external domain. And you can use in-browser messages (see window.postMessage()) to communicate between iframes and main window.

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