Details

This feature disables the ability to view HTTP content such as JavaScript, CSS, objects, and xhr requests.

Blocking active mixed content minimizes the risk of man-in-the-middle attacks.

Solution

Perform the following procedure:

* Open the mozilla.cfg file in the installation directory with a text editor

* Add the following lines to mozilla.cfg:

lockPref(“security.mixed_content.block_active_content”, true)

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/1158

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.

References

• 800-53|CM-7b.

Source

• Tenable.com/audits