So e.g. for Firefox this includes "Open a New Window" and "Open a New Private Window". This feature is only available for launchers holding a single application (as opposed to launcher menus). This feature depends on garcon >= 0.7.0.
7f3dd44d launcher: Show desktop actions in context menu
plugins/launcher/Makefile.am | 2 ++
plugins/launcher/launcher.c | 82 +++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 83 insertions(+), 1 deletion(-)