Firefox formfill assistance option is disabled.

From Mozilla Firefox Security Technical Implementation Guide

Part of DTBF140 - FireFox Preferences – Autofill forms

SV-16713r1_rule Firefox formfill assistance option is disabled.

Vulnerability discussion

In order to protect privacy and sensitive data, Firefox provides the ability to configure Firefox such that data entered into forms is not saved. This mitigates the risk of a website gleaning private information from prefilled information.

Check content

Type "about:config" in the address bar, verify that the preference name “browser.formfill.enable" is set to “false” and locked. 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 “browser.formfill.enable" is set and locked to the value of “False”.

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.