Firefox extension recommendations must be disabled.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-251570 | SRG-APP-000141 | FFOX-00-000026 | SV-251570r1067563_rule | 2025-02-11 | 6 |
| 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. |
| ℹ️ Check |
|---|
| 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 |
|---|
| 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" }, |