Firefox network prediction must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-251566 | FFOX-00-000022 | SV-251566r879587_rule | Medium |
| Description |
| If network prediction is enabled, requests to URLs are made without user consent. The browser should always make a direct DNS request without prefetching occurring. |
| STIG | Date |
| Mozilla Firefox Security Technical Implementation Guide | 2023-06-05 |
Details
| Check Text (C-55001r807168_chk) |
| Type "about:policies" in the browser window. If "NetworkPrediction" is not displayed under Policy Name or the Policy Value is not "false", this is a finding. |
| Fix Text (F-54955r807169_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: Network Prediction Policy State: Disabled macOS "plist" file: Add the following: <key>NetworkPrediction</key> <false/> Linux "policies.json" file: Add the following in the policies section: "NetworkPrediction": false |