Firefox must be configured to not automatically execute or download MIME types that are not authorized for auto-download.

Some files can be downloaded or execute without user interaction. This setting ensures these files are not downloaded and executed.

Type "about:preferences" in the browser address bar.

Type "Applications" in the Find bar in the upper-right corner.

Determine if any of the following file extensions are listed: HTA, JSE, JS, MOCHA, SHS, VBE, VBS, SCT, WSC, FDF, XFDF, LSL, LSO, LSS, IQY, RQY, DOS, BAT, PS, EPS, WCH, WCM, WB1, WB3, WCH, WCM, AD.

If the entry exists and the "Action" is "Save File" or "Always Ask", this is not a finding.

If an extension exists and the entry in the Action column is associated with an application that does/can execute the code, this is a finding.

Remove any unauthorized extensions from the auto-download list.