Firefox must be configured to disable form fill assistance.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-251551 | FFOX-00-000007 | SV-251551r960963_rule | CCI-000381 | medium |
| Description | ||||
| 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. | ||||
| STIG | Date | |||
| Mozilla Firefox Security Technical Implementation Guide | 2025-02-11 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-7
1.00
- DISA · 6 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.4.6
1.00
- DISA · 6 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000381
1.00
- DISA · 6 · disa_xccdf · related
Details
Check Text (C-251551r960963_chk)
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.
Fix Text (F-54940r807124_fix)
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