I had much difficulty changing the default file manager for the “Quick browser” and the “Shortcuts” applets from Cairo-dock. The Internet was no help for once, but
grep were ;)
So, to change the file-manager, you have to edit the
~/.local/share/applications/defaults.list file, locate the line starting with “
x-scheme-handler/file=” (although it cannot be bad to also change the line starting with “
inode/directory=”), and change the application to the one you want.
Most available applications can be found in
/usr/share/applications under most Linux distributions. If the application you want does not have its own desktop file, you can create one in
~/.local/share/applications/, or simply use the exo system from the XFCE project : choose you favourite application with the
exo-preferred-applications command, then choose “
exo-file-manager.desktop” in the fore-mentioned file.