Some application launchers contain "Desktop Action". Those actions usually show up when a launcher icon is being right clicked. In MATE desktop, those actions are only visible if the launcher is on panel as individual icon. (Example: Right click the Firefox icon > extra items "Open a New Window" and "Open a New Private Window")
However, if one uses Cinnamon or Xfce, these desktop actions are also reachable by right clicking the launchers within menu, not just when they are on panel.
Some application launchers contain "Desktop Action". Those actions usually show up when a launcher icon is being right clicked. In MATE desktop, those actions are only visible if the launcher is on panel as individual icon. (Example: Right click the Firefox icon > extra items "Open a New Window" and "Open a New Private Window")
However, if one uses Cinnamon or Xfce, these desktop actions are also reachable by right clicking the launchers within menu, not just when they are on panel.