Firefox extension recommendations must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-251570 | FFOX-00-000026 | SV-251570r1067563_rule | CCI-000381 | medium |
| Description | ||||
| The Recommended Extensions program makes it easier for users to discover extensions that have been reviewed for security, functionality, and user experience. Allowed extensions are to be centrally managed. | ||||
| 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-251570r1067563_chk)
Type "about:policies" in the browser address bar.
If "Preferences" is not displayed under Policy Name and the Policy Value does not include "extensions.htmlaboutaddons.recommendations.enabled" with a value of "false" and status of "locked", this is a finding.
Fix Text (F-54959r820758_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: Preferences
Policy State: Enabled
Policy Value:
{
"extensions.htmlaboutaddons.recommendations.enabled": {
"Value": false,
"Status": "locked"
}
}
macOS "plist" file:
Add the following:
<key>Preferences</key>
<dict>
<key>extensions.htmlaboutaddons.recommendations.enabled</key>
<dict>
<key>Value</key>
<false/>
<key>Status</key>
<string>locked</string>
</dict>
</dict>
Linux "policies.json" file:
Add the following in the policies section:
"Preferences": {
"extensions.htmlaboutaddons.recommendations.enabled": {
"Value": false,
"Status": "locked"
},