Browser "security settings"

Cornucopia, Click on 'Image' between 'Link' & 'Add a code sample' & post your screenshot.
AVG Guru

Thanks!   Here it is I hope:

Black window with AVG logo and browser security settings message

I have AVG free.  I've had an AVG logo window pop open every time I turn on my computer telling me I need to update my browser security settings.  I tried calling AVG support, they had no idea what I was talking about.  I don't know if this is legitimate.  I have clicked on it to "apply security settings" and then it just sits there forever looking like it's applying something but nothing ever happens.  If it's real how long is it supposed to take.  There is no minimizer or close button on it and it stays there whenever my browser (Firefox) is open.  I want to know if it's real or malware, and if not, why doesn't support know about it and why can't it just work?  I want it to go away.
Any help?

Hello Cornucopia. Thank you for the screenshot. I certainly understand your concern. I have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve your issue. Thank you.

Hi Cornucopia, in order to understand the issue please post a screenshot here. To know how to create a screenshot visit http://avgread.me/1NIfjVM. Thanks.

Cornucopia, Click on 'Image' between 'Link' & 'Add a code sample' & post your screenshot.
AVG Guru

Yes, that's it.  Thanks for your help.  It comes on every time I open the browser.  If I say Remind Me Later and check "Never" it just comes on a few browser openings later.  And again, if I click on it, it just endlessly circles like it's doing something with nothing happening.

Thanks!   Here it is I hope:

Black window with AVG logo and browser security settings message