This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox Private Window is leaking data to Non PB window

  • 1 cavab
  • 1 has this problem
  • 9 views
  • Last reply by zeroknight

more options

I have two firefox browsers open simultaneously. One in private window, the other regular window. Both with no tracking.

Firefox Private window is leaking data to regular non private firefox window.

Data is being shared between both windows.

Can you ix i I abandon Firefox?

I have two firefox browsers open simultaneously. One in private window, the other regular window. Both with no tracking. Firefox Private window is leaking data to regular non private firefox window. Data is being shared between both windows. Can you ix i I abandon Firefox?

All Replies (1)

more options

If you are running in private browsing mode (aka "Never Remember History") then all windows are private and share the same cookies. The menu items "New window" and "New private window" do the same thing.

If you want separate cookie jars, you will need to disable private browsing mode so you can use containers or private windows. Alternatively, you can create multiple profiles configured for private browsing or use a separate installation like Developer Edition.