Firefox extension recommendations must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-251570 | FFOX-00-000026 | SV-251570r879587_rule | 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 | 2023-06-05 |
Details
| Check Text (C-55005r807180_chk) |
| Type "about:policies" in the browser address bar. If "extensions.htmlaboutaddons.recommendations.enabled" is not displayed with a value of "false", 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" }, |