In Unity, it is possible to add desktop actions to dock items (eg, you can add a "New Private Window" action to firefox.desktop and it would appear as an option when you right-click the Firefox icon in the dock). I just installed Ubuntu Gnome, and though the desktop files appear to be the same as those in Unity, the desktop actions don't appear in the dock entries/icons. Is there any way to make this happen in Gnome?
Ubuntu: 14.04 LTS
Example desktop action:
[Desktop Entry] Version=1.0 Name=Firefox Web Browser ... Actions=NewPrivateWindow; [Desktop Action NewPrivateWindow] Name=Open a New Private Window Exec=firefox -private-window;
[Note that the line
OnlyShowIn=Unity; has been removed.]
Desktop file location: /usr/share/applications/