Browser Login, Can't Connect To localhost:57728

I use firefox. When I try to login.

  1. I Press "Log in with browser" The blue button in the launcher.
  2. I log in in my browser.
  3. When I press Authorize. I get this messege.

Firefox can’t establish a connection to the server at localhost:57728

I dont understand what goes wrong. I have tried using Chrome, Edge and opera and nothing works.
For some reason localhost:57728 is blocked and I dont know how to fix it. Have not been able to play for month and nothing has worked.
Please Help. I just want to play

This post is deleted!

@eternal Can you be more specific? I tried that and I still get the same error messege.
I have tried with every brower I can think of.

@katharsas What am I meant to do if it's 'blocked'? How do I tell if it's blocked? When I check in cmd it says that it is 'listening' rather than 'established' but what do I do then?

"Listening" means that some program is waiting on that port for connections, which means the port is blocked for other porgrams.
Behing 'listening' there should be a number, which is the PID (process ID) of the program that is using (listening on) the port.

The link i gave also describes how to get the name of the porgram from that number ("How to match the process ID to a program").

Once you know which software is blocking the port, you can decide on a solution:

  • Killing the program once when you want to play FAF
  • Uninstalling the program permanently
  • ...