When you click a magnet link, or download a .torrent file, you might want to open them with DownZemAll!.
To do so, setup the association of these types of file with DownZemAll!:
Windows, Linux, MacOs offer options to associate the file extension “.torrent” to DownZemAll!, so that DZA opens .torrent files.
Mozilla Firefox defines the default application to start or open a certain file extension or MIME type. Read instructions here: Change what Firefox does when you click on or download a file.
Remark:
Always associate the extensions/MIME types to downzemall (windows: downzemall.exe)… not to the launcher!