Problem solving: When accessing your own Web page: This address uses a port that is typically used outside of network browsing. For security reasons, Firefox canceled the request.

This problem is that the port is limited, but the other ports are not limited to do not know why, I hope to see the big guy to help answer, the following talk about the solution to this problem

Firefox Address bar input About:config

Then right-click the new string

Input network.security.ports.banned.override

Then enter the port number you want to access.

If multiple ports are separated by commas, you can 87,88,89

Problem solving: When accessing your own Web page: This address uses a port that is typically used outside of network browsing. For security reasons, Firefox canceled the request.