Hi,
To install XFCE 4.14 in Debian 10 Buster, so Thunar "custom actions" work in Desktop folder, do this:
echo 'deb http://http://download.opensuse.org/rep ... Debian_10/ /' > /etc/apt/sources.list.d/home:stevenpusser:xfce-4.14.list
rm -f Release.key && wget -nv https://download.opensuse.org/repositor ... elease.key -O Release.key
apt-key add - < Release.key && rm -f Release.key
apt update
apt full-upgrade
logout and login
The reason I created a new topic here, is because that specific post is "buried" in the bottom of a seemingly unrelated topic name ("Downgrading Thunar from 1.8.4 to 1.6.3").
Read this post for more details and clarification about the above commands:
viewtopic.php?f=10&t=143220#p706444
Credits to stevepusser!