I&#x27;m puzzled. As a developer the sites I work on are (mostly) going to be hosted on my local machine. I usually don&#x27;t bother with all the effort to set up SSL certificates for my development web server unless I&#x27;ve got an SSL-specific issue to investigate. Is this feature disabled for sites that are local? If not I&#x27;d expect I would just come to ignore it quite quickly. Then when I then look at the production version of a site I&#x27;m more likely to continue to ignore it as I&#x27;ve been conditioned into assuming it&#x27;s a false indicator.<p>At the same time, for normal web users I can see how such a warning could be helpful. But it seems normal editions of Firefox won&#x27;t have this enabled by default.<p>Or are my development practices unusual in some way?