Firefox detected a potential security threat and did not continue to ajayebshahr.com. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.
What can you do about it?
The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the websites administrator about the problem.
You can continue with your default DNS resolver. However, a third-party might be able to see what websites you visit.
It looks like your network security settings might be causing this. Do you want the default settings to be restored?