diff --git a/.ci/Containerfile.functional-tests-stable b/.ci/Containerfile.functional-tests-stable
new file mode 100644
index 000000000..a3cf73997
--- /dev/null
+++ b/.ci/Containerfile.functional-tests-stable
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+FROM debian:stable
+
+CMD /sbin/init
+USER root:root
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN echo "deb http://deb.debian.org/debian bookworm-backports main" > /etc/apt/sources.list.d/backports.list; echo "deb-src http://deb.debian.org/debian bookworm-backports main" >> /etc/apt/sources.list.d/backports.list
+
+RUN apt-get update
+
+# Update all packages
+RUN apt-get dist-upgrade -y
+
+# Install freedombox package so that plint:plinth user/group are created etc.
+RUN apt-get install -y freedombox/bookworm-backports
+RUN systemctl mask plinth.service
+
+# Don't ask for the secret in first wizard
+RUN rm -f /var/lib/plinth/firstboot-wizard-secret
+
+# Dependencies of the freedombox Debian package
+RUN apt-get build-dep -y freedombox/bookworm-backports
+
+# Build and test dependencies
+RUN apt-get install -y \
+    build-essential \
+    parted \
+    sshpass \
+    wget
+
+
+# Install functional test dependencies
+ADD https://salsa.debian.org/freedombox-team/freedombox/-/raw/main/plinth/tests/functional/install.sh /usr/src/install.sh
+RUN bash /usr/src/install.sh; rm -f /usr/src/install.sh
+
+# Allow daemons to start when container is started
+RUN rm -f /usr/sbin/policy-rc.d