An integrated customizable download manager is also included. Downloads can be opened automatically depending on the file type, or saved directly to disk.

By default, Firefox downloads all files to a user’s desktop on Mac and Windows or to the user’s home directory on Linux, but it can be configured to prompt for a specific download location. The download manager currently does not support cross-session resuming (stopping a download and resuming it after closing the browser).

Another issue with the download manager is that it fails to close if small files or files already in the cache are downloaded. One advantage of the Firefox download manager is that the user can view the full source URL and destination path of the file being downloaded via the Properties box; Internet Explorer only shows the file name and source domain name.