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The box "Delete Cookies and Site Data when Firefox is closed" becomes unchecked every time I quit Firefox.

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  • 1 has this problem
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  • Last reply by Terry

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The box "Delete Cookies and Site Data when Firefox is closed" becomes unchecked every time I quit Firefox. Is there a way to be sure that it stays checked so that I don't have to open preferences every time I open Firefox?

The box "Delete Cookies and Site Data when Firefox is closed" becomes unchecked every time I quit Firefox. Is there a way to be sure that it stays checked so that I don't have to open preferences every time I open Firefox?
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Are you possibly using "Clear history when Firefox closes" to cookies or Site Preferences ?


  • using "Delete cookies and site data when Firefox is closed" keeps cookies with an allow exception
  • using "Clear history when Firefox closes" to clear cookies clears all cookies including cookies with an allow exception you may want to keep
  • clearing "Site Preferences" clears exceptions for cookies, images, pop-up windows, and software installation and exceptions for passwords and other website specific data
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Evidently that will be fixed in Firefox 103.0. (Remove blank space in the link below.)

https://old.reddit. com/r/firefox/comments/vn68tr/firefox_is_unchecking_delete_cookies_and_site/