
If you do not want to delete the cookies or site data for a particular domain, then you can click on the Manage Exceptions button.

This is it, now Firefox will delete all the cookies and site data that was stored during the the active session as soon as you close all the open Firefox windows.Scroll down to find the section Cookies and site data and then select the checkbox labeled Delete cookies and site data when Firefox is closed.In the settings, select the Privacy & Security section.Alternatively, you can also click on the menu icon in the Firefox window and select Settings from the Firefox menu. For opening its settings, we can simply enter about:preferences in the address bar. Launch Firefox browser and open its settings.In order to enable this setting in Firefox, you can follow these steps: This feature protects the user privacy as none of the session data will be stored for use with the next session because everything is deleted by Firefox at exit. This will automatically remove all the cookies and the site data that was stored during that session. In the latest version of the Firefox, there is a feature using which we can make Firefox automatically delete all the cookies and the site data as soon as we close the Firefox window. It packs many features that protect users’ privacy. Firefox is a web browser that is popular with users who value their privacy and security.
