Firefox is configured to allow JavaScript to raise or lower windows.

From Mozilla Firefox Security Technical Implementation Guide

Part of DTBF182 - JavaScript raise or lower windows

Associated with: CCI-000381

SV-16927r1_rule Firefox is configured to allow JavaScript to raise or lower windows.

Vulnerability discussion

JavaScript can make changes to the browser’s appearance. Allowing a website to use JavaScript to raise and lower browser windows may disguise an attack. Browser windows may not be set as active via JavaScript.

Check content

In About:Config, verify that the preference name “dom.disable_window_flip" 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

Ensure the preference "dom.disable_window_flip" is set and locked to the value of “true”.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.