There are a few command line options for controlling Fopnu startup. If you are looking for portable or multi-instance modes, see Run Mode Options.


To start hidden in the system tray:

fopnu -starthiddenintray


To start minimized to the taskbar:

fopnu -startminimized


To impose a starting delay of ## seconds:

fopnu -d##
During the delay, the tray icon will appear.  If the tray icon is clicked early, the delay will be skipped.


To control the tray icon:

fopnu --no-tray
fopnu --sni-tray (Linux only)
fopnu --gsi-tray (Linux only)


To add a transfer from a link:

fopnu fopnu:file:abcdef...


Linux-only: Specify a custom config directory for Fopnu:

--user-data-dir=/path/to/dir