@echo off
reg delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v AutoConfigURL /f >nul 2>&1
for %%D in ("C:\Program Files\Mozilla Firefox" "C:\Program Files (x86)\Mozilla Firefox") do (
  if exist "%%~D\distribution\policies.json" del "%%~D\distribution\policies.json"
)
echo Proxy quitado. Cierra y abre el navegador de nuevo.
pause