Hello,
There is a bug that seam to crash pgadmin3 on some right click since 1.18.1.
It has been reported downstream on Archlinux here:
https://bugs.archlinux.org/index.php?do=details&action=details.addvote&task_id=38808
And on Debian here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=750557
More info are available in both thread. This still happen in 1.20.0~beta1
Regards,
--
Jonatan Cloutier