xfce4-terminal appears upon log in

[kaye n]

Hello Friends

I'm not sure what I did, but when I log into my Debian, xfce4-terminal
opens automatically.

My system:

Kernel: 4.19.0-6-amd64 x86_64
bits: 64
Desktop: Xfce 4.12.4
Distro: Debian GNU/Linux 10 (buster)