Firefox search suggestions must be disabled.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-251564	SRG-APP-000141	FFOX-00-000020	SV-251564r960963_rule	2025-02-11	6

Description
Search suggestions must be disabled as this could lead to searches being conducted that were never intended to be made.

ℹ️ Check
Type "about:policies" in the browser window. If "SearchSuggestEnabled" is not displayed under Policy Name or the Policy Value is not "false", 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\Search Policy Name: Search Suggestions Policy State: Disabled macOS "plist" file: Add the following: <key>SearchSuggestEnabled</key> <false/> Linux "policies.json" file: Add the following in the policies section: "SearchSuggestEnabled": false

✔️ 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\Search Policy Name: Search Suggestions Policy State: Disabled macOS "plist" file: Add the following: <key>SearchSuggestEnabled</key> <false/> Linux "policies.json" file: Add the following in the policies section: "SearchSuggestEnabled": false