Cannot find service in Firefox after upgrade from stable to latest

Hi
After upgrading from stable to latesT Firefox doens’t fin htttp://arnor.groumpf.org:8123
Here is my compose.yml

version: '3'
services:
  homeassistant:
    container_name: homeassistant
    image: "ghcr.io/home-assistant/home-assistant:latest"
    volumes:
      - /opt/homeassistant/config:/config
      - /etc/localtime:/etc/localtime:ro
    restart: unless-stopped
    privileged: true
    network_mode: host

Firefox doen’t connect :


Unable to connect

Firefox can’t establish a connection to the server at arnor.groumpf.org:8123.

Docker status :

[root@arnor homeassistant]# docker ps -a
CONTAINER ID   IMAGE                                          COMMAND        CREATED          STATUS          PORTS                                                                                            NAMES
83b2b76bc557   ghcr.io/home-assistant/home-assistant:latest   "/init"        13 minutes ago   Up 3 seconds                                                                                                     homeassistant
97b53b5c5218   portainer/portainer-ce:latest                  "/portainer"   18 months ago    Up 37 minutes   0.0.0.0:8000->8000/tcp, :::8000->8000/tcp, 0.0.0.0:9443->9443/tcp, :::9443->9443/tcp, 9000/tcp   portainer
[root@arnor homeassistant]# netstat -anp | grep -w LISTEN | grep  docker
tcp        0      0 0.0.0.0:8000            0.0.0.0:*               LISTEN      2493879/docker-prox 
tcp        0      0 0.0.0.0:9443            0.0.0.0:*               LISTEN      2493858/docker-prox 
tcp6       0      0 :::8000                 :::*                    LISTEN      2493886/docker-prox 
tcp6       0      0 :::9443                 :::*                    LISTEN      2493866/docker-prox 

Obvously none is listening to port 8123
Regards,
Xavier

EDIT : python3 is listening

[root@arnor ~]# lsof -i:8123
COMMAND     PID USER   FD   TYPE    DEVICE SIZE/OFF NODE NAME
python3 2506481 root   10u  IPv4 180476963      0t0  TCP *:8123 (LISTEN)
python3 2506481 root   11u  IPv6 180476964      0t0  TCP *:8123 (LISTEN)

But Firefox doesn’t want to connect

It was the stupid firewall, I don’t use generally.
sudo systemctl stop firewalld.service resolved the problem
Cheers
Xavier