Firefox Rolls Out Total Cookie Protection By Default | The Mozilla Blog
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Updated Aug. 28, 2024. Take back your privacy Firefox is rolling out Total Cookie Protection by default to more Firefox users worldwide, making Firefox the
    • Ephera@lemmy.ml
      1·
      21 days ago

      It is already a thing for 2 years, since this is just an update to an old blog post to say that they’ll do even more now.

      Aside from that, it wasn’t a thing, because as per the usual something on the web breaks when you change behavior like that, because some webpages rely on third-party cookies to provide their core functionality.

      Someone (in this case the Tor Browser devs) had to come up with a way to have third-party cookies and eat them, too but isolate them from the third-party cookies that got created on other webpages.
      On the technical side, this is called “first-party isolation”, and basically each domain you browse to gets its own cookie jar to store first- and third-party cookies in.