To automatically start applications in GNOME, use one of the following methods:
To run applications for every user: Put .desktop files in /opt/gnome/share/autostart or /opt/gnome/share/gnome/autostarrt.
To run applications for an individual user: Put .desktop files in ~/.config/autostart.
To disable an application that starts automatically, add X-Autostart-enabled=false to the .desktop file.
