Firefox is configured to allow JavaScript to change the status bar text.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-15988	DTBF185	SV-16930r1_rule	ECSC-1	Medium

Description
JavaScript can make changes to the browser’s appearance. This activity can help disguise an attack taking place in a minimized background window. Webpage authors can disable many features of a popup window that they open. Setting these preferences to true will override the author's settings and ensure that the feature is enabled and present in any popup window. This setting prevents the status bar from being hidden.

Description

JavaScript can make changes to the browser’s appearance. This activity can help disguise an attack taking place in a minimized background window. Webpage authors can disable many features of a popup window that they open. Setting these preferences to true will override the author's settings and ensure that the feature is enabled and present in any popup window. This setting prevents the status bar from being hidden.

STIG	Date
Mozilla Firefox	2015-12-30

Details

Check Text ( C-16628r1_chk )
In About:Config, verify that the preference “dom.disable_window_open_feature.status" is set and locked to “true”. Criteria: If the parameter is set incorrectly, then this is a finding. If the setting is not locked, then this is a finding.

Fix Text (F-16000r1_fix)
Ensure the preference "dom.disable_window_open_feature.status" is set and locked to the value of “true”.