Firefox / Warning: Potential Security Risk
I recently had cause to look at the https://www.dar-jader.com site via Firefox web browser and got the above message.
It seems the other browsers are “Set up” for the possible “middle man” effect as explained in the following Blog Post.
The UNKNOWN_ISSUER message most often indicates there is a “man in the middle” of the connection between Firefox and the website. That could be something innocent like your parental control or security software, or it could be malware or a distrustful government somewhere.
See the full forum post, here.
Please excuse me it is not JADER Ltd’s fault that this message appears on Firefox browsers.
I shall continue to look for a solution, although am quite busy so this might take some time 🙂