Background submission of information to Mozilla must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-251558 | FFOX-00-000014 | SV-251558r960963_rule | CCI-000381 | medium |
| Description | ||||
| Firefox by default sends information about Firefox to Mozilla servers. There should be no background submission of technical and other information from DoD computers to Mozilla with portions posted publicly. | ||||
| STIG | Date | |||
| Mozilla Firefox Security Technical Implementation Guide | 2025-02-11 | |||
Details
Check Text (C-251558r960963_chk)
Type "about:policies" in the browser window.
If "DisableTelemetry" is not displayed under Policy Name or the Policy Value is not "true", this is a finding.
Fix Text (F-54947r807145_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 Telemetry
Policy State: Enabled
macOS "plist" file:
Add the following:
<key>DisableTelemetry</key>
<true/>
Linux "policies.json" file:
Add the following in the policies section:
"DisableTelemetry": true