Information
This setting allows for the deletion of user data upon closing the browser.
Rationale:
Deleting browser data will delete information that may be important for a computer investigation and investigators such as Computer Forensics Analysts may not be able to retrieve pertinent information to the investigation.
Impact:
None - This is the default behavior.
Note: This setting will preserve browsing history that could contain a user's personal browsing history. Please make sure that this setting is in compliance with organizational policies.
Solution
To establish the recommended configuration, set Privacy.sanitize.SanitizeOnShutdown to false:
Type about:config in the address bar
Type Privacy.sanitize.SanitizeOnShutdown in the filter
Ensure the setting is set as prescribed.
OR
Open the mozilla.cfg file in the installation directory with a text editor
Add the following lines to mozilla.cfg:
lockPref('Privacy.sanitize.SanitizeOnShutdown', false);
Default Value:
False (Disabled).