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Private mode sending cookies

  • 3 replies
  • 1 has this problem
  • 36 views
  • Last reply by cor-el

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I noticed today when I opened a new private window and pasted a URL into the address bar, the website seemed to know that I had been there before. So I closed the window, opened up a new private window, turned on the network tool, and tried again. What I saw was on the very first network request, Firefox sent half a dozen cookies to the website!

What's going on here? Does the private browsing session not end when I close the window? Is it supposed to?

Chosen solution

Ok, figured it out! There was another private window open, so I guess there's one session across all the private windows. Good to know! Not sure it's documented, anywhere!

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Chosen Solution

Ok, figured it out! There was another private window open, so I guess there's one session across all the private windows. Good to know! Not sure it's documented, anywhere!

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That was very good work. Well Done. Please flag your last post as Solved Problem as this can help others with similar problems.

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Firefox has two two cookies jars, one for regular windows and one for all Private Browsing windows. Cookies in the Private Browsing jar are shared among all PB Windows and Tabs.

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