I had this problem with Google Chrome before, but now I have it with Firefox as well:
I'm running Ubuntu 17.10 on my laptop, with apache2. This is a development machine so I have numerous php sites defined as virtual hosts. This used to work perfectly on both chrome and firefox. But a couple of weeks (?) ago Chrome refused service, and now Firefox thinks it has to protect me from my own code. I don't know if the problem is caused by a recent updat of Chrome or Firefox, or if this is caused by an apache update.
Now I can't access any of these virtual hosts anymore. I get some crap message about "Your connection is not secure" and some stuff about HSTS.
The thing is : I don't use https for these sites, and I don't want to use it. All I'm developing are intranet applications NOT even accessible outside our company network, so I don't need HTTPS, and I couldn't even get certificates if I tried since there is no "official" domainname linked to these sites (they're all .lan, or .dev names)
I wasted a full day on this crap and nothing seems to work. How do I disable HSTS completely on my locally installed apache2 on MY OWN laptop? These sites on my laptop are development versions not accessible outside my laptop, so I don't need this.
Disabling HSTS for any .dev website would also be a solution.
Or alternatively does anyone know of a recent step by step "how to" on using self-signed certificates that does work? I've tried several today but none of them seem to work in this situation.
Does anyone have a solution to this annoyance? I have deadlines, and they are approaching fast.