Download Blocker is a Firefox add-on designed to enhance security and privacy by restricting file downloads. This subscription-based tool is particularly useful in specialized environments such as kiosk terminals, where the downloading of unknown files poses a risk. The add-on provides a straightforward solution by blocking all downloads except for specific resource types, including text/plain, text/html, application/pdf, and application/postscript.

By implementing Download Blocker, users can ensure a safer browsing experience, as it prevents the accidental or malicious downloading of potentially harmful files. This focused approach to file management makes it an essential tool for organizations looking to maintain strict control over their digital environments. Overall, Download Blocker stands out as a reliable option for those prioritizing online security.