Firewall Mode Changed

I have gotten a message from Avast that says, “Firewall Mode Changed”. What do I do with it? I am clueless and there are no instructions or guidance with the message.

Hope someone can help.

Thanks,

Richard

https://www.google.no/webhp?sourceid=chrome-instant&rlz=1C1JZAP_noNO713NO713&ion=1&espv=2&ie=UTF-8#q=avast%20firewall%20mode