diff --git a/Dockerfile b/Dockerfile
index 803ca94..0debf37 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -150,6 +150,9 @@ RUN dkms install zfs/$(ls /usr/src/ | grep zfs- | cut -d- -f2-) -k $(rpm -q --qu
 # Install Gnome Boxes
 RUN rpm-ostree install gnome-boxes
 
+# Replace Firefox with custom built version
+RUN rpm-ostree override replace --experimental --from repo=copr:copr.fedorainfracloud.org:andersrh:my-ostree-os firefox firefox-langpacks
+
 # enable scx service
 RUN systemctl enable scx.service