I warmly welcome!
I have a problem and ask for help. I'm on your side of the installed add-on Simple RSS Feed Reader in the latest version. When it is turned on https does not work properly and the browser displays a message about the dangerous contents. How to solve this problem.
Regards
Piotr Olszewski
My site with https problem

Hello,

Can you enable right clicking on your site?

Hello
Thank you for your quick response and willingness to help. Problem has been solved. It turned out that it was guilty of a link to one of the RSS feeds portal www.komputerswiat.pl/.
After removing this link everything is working properly.

Regards
Piotr Olszewski