Connection refused while using Nvim DAP

Hey! I'm trying to debug in firefox, but every time I try running I receive this error: `Error on launch: connect ECONNREFUSED ::1:6000`
I verified the debug server is running on port 6000 by running `lsof -i 6000` and my configuration looks like this:

```lua
dap.adapters.firefox = {
type = "executable",
command = "node",
args = { os.getenv("HOME") .. "/apps/vscode-firefox-debug/dist/adapter.bundle.js" },
}
```

Then the launch configuration:

```lua
{
name = "Debug with Firefox",
type = "firefox",
request = "launch",
reAttach = true,
url = "http://localhost:3000",
webRoot = "${workspaceFolder}",
firefoxExecutable = "/usr/bin/firefox",
},
```

I have all the necessary `about:config` variables set, but the connection is always refused, is there something I have to change?

Start with the shown dap.adapters.firefox executable configuration and launch configuration, then reproduce the ECONNREFUSED error against port 6000. Trace the adapter connection to the Firefox debug server using the referenced adapter.bundle.js entry point; done means the supplied Nvim DAP setup launches Firefox without the connection refusal.

Scritto dal modello di indicizzazione a partire dal testo della issue.