sudo dpkg -i messengerfordesktop-2.0.9-linux-amd64.deb 
[sudo] password for rufus: 
(Reading database ... 211363 files and directories currently installed.)
Preparing to unpack messengerfordesktop-2.0.9-linux-amd64.deb ...
Unpacking messengerfordesktop (2.0.9-171) over (2.0.9-171) ...
dpkg: dependency problems prevent configuration of messengerfordesktop:
 messengerfordesktop depends on libappindicator1 | libappindicator | libappindicator-gtk3; however:
  Package libappindicator1 is not installed.
  Package libappindicator is not installed.
  Package libappindicator-gtk3 is not installed.

dpkg: error processing package messengerfordesktop (--install):
 dependency problems - leaving unconfigured
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu5.1) ...
Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160824-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.59ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
Errors were encountered while processing:
 messengerfordesktop