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Back to Mozilla Firefox Security Technical Implementation Guide
Severity: Medium
<VulnDiscussion>To protect privacy and sensitive data, Firefox provides the ability to configure the program so that data entered into forms is not saved. This mitigates the risk of a website gleaning private information from prefilled information.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
Type "about:policies" in the browser window. If "DisableFormHistory" is not displayed under Policy Name or the Policy Value is not "true", this is a finding.
Windows group policy: 1. Open the group policy editor tool with "gpedit.msc". 2. Navigate to Policy Path: Computer Configuration\Administrative Templates\Mozilla\Firefox Policy Name: Disable Form History Policy State: Enabled macOS "plist" file: Add the following: <key>DisableFormHistory</key> <true/> Linux "policies.json" file: Add the following in the policies section: "DisableFormHistory": true