Stop pgAdmin 4 from launching on boot (ubuntu 16.04)

Solution 1:

Facing the same issue on Ubuntu 18.04 with KDE Plasma 5.12.6. The key problem is that KDE saves desktop session and restores it on reboot. That's why pgAdmin 4 starts automatically if it was running before reboot.

In order to fix this go to "System Settings", select "Startup and Shutdown" tab in "Workspace" section and then select "Desktop session":

You will see that "Restore previous session" box is enabled in "On Login" section there. If you want to exclude pgAdmin 4 only from being restored on login then just type a full path to its executable in "Applications to be excluded from sessions":

/usr/bin/pgAdmin4

You can detect a path by running:

which pgAdmin4

If you don't want to save desktop session related data then another simple solution is to tick "Start with an empty session" box.

After that click "Apply" button and reboot the system. Now pgAdmin 4 will start and open a browser only when you make it explicitly.

Solution 2:

Turns out it was due to pgadmin4 was still running in the background, so it would launch itself again on next logins. I just killed the process with old school pkill -f pgAdmin4 and it would no longer automatically launch itself on next logins. There's no need to stop postgresql service.

EDIT 26/12/2018: I've instead marked @Ezze's answer as the solution as that's indeed a better way to do it in my case.