Firefox automatically checks for updated version of installed Search plugins.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-57669	DTBF-0025	SV-72079r1_rule		Medium

Description
Updates need to be controlled and installed from authorized and trusted servers. This setting overrides a number of other settings which may direct the application to access external URLs.

STIG	Date
Mozilla Firefox	2017-03-22

Details

Check Text ( C-58491r2_chk )
Procedure: In about:config, verify that the setting for the following Preference names are set and locked. “browser.search.update”, set to "false". Criteria: If the values of the listed Preferences are not set and locked to these settings, then this is a finding.

Fix Text (F-62871r1_fix)
Set and lock the following preferences using the “Mozilla.cfg” file: “browser.search.update”, set to “false”.