async with websockets.connect('ws://localhost:49928/devtools/browser') as websocket:
       # Now you have a connection to Firefox using the remote debugging protocol
       # You can send commands and receive responses through the WebSocket connection

       # For example, you can send a request to get the list of available browser tabs
       request = '{"id": 1, "method": "Browser.getBrowserList", "params": {}}'
       await websocket.send(request)

       response = await websocket.recv()
       print(response)

Hi! I want to remote debug from python script. In dev tools settings page I have checked: Enable browser chrome and add-on debugging toolboxes Enable remote debugging And when I check about:config there it also shows: devtools.debugger.remote-enabled: true devtools.debugger.remote-host: localhost devtools.debugger.remote-port: 6000 devtools.debugger.remote-timeout: 20000 devtools.debugger.remote-websocket: true. When I go to tools > browser tools > Browser toolbox then it asks if I want to allow connection and if I press ok then it works. However when I run the following python code: import asyncio import websockets async def connect_to_firefox(): async with websockets.connect('ws://localhost:49928/devtools/browser') as websocket: # Now you have a connection to Firefox using the remote debugging protocol # You can send commands and receive responses through the WebSocket connection # For example, you can send a request to get the list of available browser tabs request = '{"id": 1, "method": "Browser.getBrowserList", "params": {}}' await websocket.send(request) response = await websocket.recv() print(response) # Run the connection coroutine asyncio.get_event_loop().run_until_complete(connect_to_firefox()) Then I get: ConnectionRefusedError: [WinError 1225] The remote computer refused the network connection Question: Why does browser toolbox work but python script doesn't?