XDG_DOWNLOAD_DIR should be set to "$HOME/Downloads" instead of "$HOME/Desktop"
This folder should be the default download location of firefox and this folder should be bookmarked in nautilus by xdg-user-dirs-gtk (like Music,Videos,Pictures and Documents).
rationale :
less cluttered desktop
still easy to find your downloads
Binary package hint: xdg-user-dirs
XDG_DOWNLOAD_DIR should be set to "$HOME/Downloads" instead of "$HOME/Desktop" Pictures and Documents).
This folder should be the default download location of firefox and this folder should be bookmarked in nautilus by xdg-user-dirs-gtk (like Music,Videos,
rationale :
less cluttered desktop
still easy to find your downloads