In order to access samba (windows share) from Linux XFCE using Thunar file browser you need to:
1.
Install samba client
sudo apt install smbclient
2.
Run:
sudo modprobe cifs
3.
Open thunar and access the share:
smb://IPADDRESS/sharename
e.g.:
smb://192.168.1.1/photos
4.
Type in the username / password in the prompt window
Some helpful information:
https://forum.manjaro.org/t/thunar-how-do-i-access-folders-shared-on-windows-computers/116649/9