Installed version of Firefox unsupported.

From Mozilla Firefox Security Technical Implementation Guide

Part of DTBF003 - Installed version of Firefox not supported

Associated with: CCI-003376

SV-19509r2_rule Installed version of Firefox unsupported.

Vulnerability discussion

Use of versions of an application which are not supported by the vendor are not permitted. Vendors respond to security flaws with updates and patches. These updates are not available for unsupported version which can leave the application vulnerable to attack.

Check content

Method 1: View the following registry key: HKLM\Software\Mozilla\Mozilla Firefox\CurrentVersion Method 2: Search for the firefox.exe file using the search feature of the operating system. Examine the files properties for the product version (not the file version. For Windows OS, determine the version of the file by examining navigating to Properties/Version/Product Version. Examine for all instances of firefox.exe that are present on the endpoint. Criteria: If the version number of the firefox.exe file is less than 50.1.x (or ESR 45.7.x), this is a finding.

Fix text

Upgrade the version of the browser to an approved version by obtaining software from the vendor or other trusted source.

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.