webmin port problems - firefox port protection

I had some trouble setting up my webmin panel,
and one thing was firefox with its port protection.

Just do the following:

1. about:config as url
2. add string value: network.security.ports.banned.override
3. fill it with a comma seperated list, e.g. just 10000 for webmin

And of course the ports must be open or listend at on the server,
test this on the server with:

•  netstat -an | grep :10000

And locally you can also do a nmap your.server.com