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

Previous searches stored in cookies persist on sites, even after clearing cookies.

more options

I have been using firefox in private mode ONLY for months now. My privacy settings were set to "custom" with cross-site cookies blocked, tracking content blocked, cryptominers blocked, fingerprinters blocked, in ALL windows.

I have no history, it's automatically deleted. But I have two problems:

1 - On certain sites, you can guess which, my search history is preserved on the site. When I click the search box, it suggests the many things I've searched previously. This even happens when on VPN. I inspect the element and can trace it to see it is stored in some form of cookies. I clear cookies, reset the browser, and it's STILL there!

2 - I have history disabled for a reason. Yet, I still can click the history tab and see "recently closed tabs". That defeats the purpose of disabling history.

I have been using firefox in private mode ONLY for months now. My privacy settings were set to "custom" with cross-site cookies blocked, tracking content blocked, cryptominers blocked, fingerprinters blocked, in ALL windows. I have no history, it's automatically deleted. But I have two problems: 1 - On certain sites, you can guess which, my search history is preserved on the site. When I click the search box, it suggests the many things I've searched previously. This even happens when on VPN. I inspect the element and can trace it to see it is stored in some form of cookies. I clear cookies, reset the browser, and it's STILL there! 2 - I have history disabled for a reason. Yet, I still can click the history tab and see "recently closed tabs". That defeats the purpose of disabling history.

All Replies (2)

more options

Such data isn't stored in a cookie.

Do you have search and form data enabled in "Settings -> Privacy & Security" ?

Note that you also can clear "Form & Search" data via "Clear history when Firefox closes".

more options

It certainly is stored in a cookie, which does not clear when cleared via settings. Image below from inspect element: