I am still experiencing an error in FF65 (Secure connection failed)
Perhaps you need to disable HTTPS Everywhere — the link in this post is HTTP, not HTTPS.
I have HTTPS Everywhere and didn't have any problems accessing the link (it loaded over cleartext HTTP as intended).
I am running Firefox Developer Edition 67.0b4 and did not have this issue. I noticed that you are using Firefox 65. Maybe updating to Firefox 66.0.1 (current version) would resolve this?
I'm guessing it is actually a https thing. Do you have that on? Because I am currently on a FF66 (different computer) and having the same error. But given the error it looks more to be because there is no https version of the site.
Which I'm fine with. If you don't have https I don't need to go to your site.
A news site or blog needs to be https for you to visit for what reason? Is it ideology? Fear of network neighbours spying?
Probably fear of content injection (eg a third party on shared wifi injecting a pdf with a zero day exploit, or just some malicious Javascript).
More of a principle thing. SSL is easy to enable and the whole web should be encrypted. I fully support all the major browsers' decision to warn users about sites that aren't https (even without login). It doesn't feel like there's a good excuse to not have https enabled.