Firefox must be configured to not delete data upon shutdown.

An XCCDF Rule

Description

<VulnDiscussion>For diagnostic purposes, data must remain behind when the browser is closed. This is required to meet non-repudiation controls.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

ID: SV-252881r879587_rule
Severity: Medium
References: CCI-000381
Updated: about 1 year ago

Windows group policy:
1. Open the group policy editor tool with "gpedit.msc".
2. Navigate to Policy Path: Computer Configuration\Administrative Templates\Mozilla\Firefox\Clear data when browser is closed
Policy Name: Cache, Cookies, Download History, Form & Search History, Browsing History, Active Logins, Site Preferences, Offline Website Data
Policy State: Disabled
Policy Name: LockedPolicy State: Enabled

macOS "plist" file:
Add the following:
<key>SanitizeOnShutdown</key>
<dict>
  <key>Cache</key>
  <false/>
  <key>Cookies</key>
  <false/>
  <key>Downloads</key>
  <false/>
  <key>FormData</key>
  <false/>
  <key>History</key>
  <false/>
  <key>Sessions</key>
  <false/>
  <key>SiteSettings</key>
  <false/>
  <key>OfflineApps</key>
  <false/>
  <key>Locked</key>
  <true/>
</dict>

Linux "policies.json" file:
Add the following in the policies section:
"SanitizeOnShutdown": {
  "Cache": false,
  "Cookies": false,
  "Downloads": false,
  "FormData": false,
  "History": false,
  "Sessions": false,
  "SiteSettings": false,
  "OfflineApps": false,
  "Locked": true 
}

Firefox must be configured to not delete data upon shutdown.

Description

Remediation - Manual Procedure