Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

Learn More

Why do some sites, when open in a Private Window, keep cookies after PW is closed?

  • 5 回覆
  • 1 有這個問題
  • 9 次檢視
  • 最近回覆由 honest_abe

more options

I open sites only in private windows. Then, generally, I close the private window and all its cookies disappear as it should. However, on at least two sites, eBay and yahoo finance, when I close the private window, a cookie for that site remains. I use Cookie Quick Manager extension (and set it as my home page) so I can see what cookies are created and removed. But when I open the yahoo page, for example, http://finance.yahoo.com/quotes/%5EDJI,IBDM,SCHH,PFF,CTL,ONEQ,FXI,CXSE,GXC,CSCO,NLY,VZ,ECOL,FUTY,BA in a new private window, even if I open no other windows but then exit the private window, a yahoo cookie remains.

I open sites only in private windows. Then, generally, I close the private window and all its cookies disappear as it should. However, on at least two sites, eBay and yahoo finance, when I close the private window, a cookie for that site remains. I use Cookie Quick Manager extension (and set it as my home page) so I can see what cookies are created and removed. But when I open the yahoo page, for example, http://finance.yahoo.com/quotes/%5EDJI,IBDM,SCHH,PFF,CTL,ONEQ,FXI,CXSE,GXC,CSCO,NLY,VZ,ECOL,FUTY,BA in a new private window, even if I open no other windows but then exit the private window, a yahoo cookie remains.

所有回覆 (5)

more options

Is that set on the private Browser as homepage as well?

more options

WestEnd said

Is that set on the private Browser as homepage as well?

Does it matter? Think about it. When I close the Private Window (when there is only one PW open), that home page would disappear. This problem doesn't occur with Google and in all my searches, so far I can only remember these two that do that.

more options

Are you sure this is about cookies and not about data stored in some other file?

Do you see this data in the Cookie Manager (manage cookies and site data)?

more options

cor-el said

Are you sure this is about cookies and not about data stored in some other file? Do you see this data in the Cookie Manager (manage cookies and site data)?

Yes. Cookie Manager shows the cookie there.Other cookies disappear as soon as the last PW (if more than one) isclosed.

more options

Shown are Cookie Mgr window before loading Yahoo finance in PB mode. Second shows multiple cookies after loading. Third shows single cookie after exiting. As I said, I only know of two sites (yahoo and fleabay) that do this. https://prod-cdn.sumo.mozilla.net/uploads/images/2019-02-13-05-55-20-2c7057.png https://prod-cdn.sumo.mozilla.net/uploads/images/2019-02-13-05-55-34-f2d4e3.png https://prod-cdn.sumo.mozilla.net/uploads/images/2019-02-13-05-55-45-63f8c2.png