Error when running server in Firefox

I am working with Django but when I save any changes the server gets disconnected, this only happens when I am using Firefox and I am on Windows10. The error in the terminal says the following:
“ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine”

I found something on Stackoverflow…which I didn’t understood. How can fix it? Please.