@echo off

set VERSION=%1
set DOWNLOADFILE="%TEMP%\Firefox_%VERSION%.exe"

for /F "tokens=3" %%a in ('reg query "HKCU\Control Panel\International" /v LocaleName ^| find "LocaleName"') do (
  for /F "tokens=1 delims=-" %%b in ("%%a") do set LANG=%%b
)

if "%LANG%" == "en" (
  set LANG=en-US
) else if "%LANG%" == "es" (
  set LANG=es-ES
) else if "%LANG%" == "pt" (
  set LANG=pt-PT
) else if "%LANG%" == "sv" (
  set LANG=sv-SE
)

if "%PROCESSOR_ARCHITECTURE%" == "AMD64" (
  set ARCH=win64
) else if "%PROCESSOR_ARCHITECTURE%" == "ARM64" (
  set ARCH=win64-aarch64
) else if "%PROCESSOR_ARCHITECTURE%" == "IA64" (
  echo exit 255
) else if "%PROCESSOR_ARCHITECTURE%" == "x86" (
  set ARCH=win32
) else (
  echo exit 254
)

:: download firefox
"%SYSTEMROOT%\System32\bitsadmin.exe" /transfer /download https://ftp.mozilla.org/pub/firefox/releases/%VERSION%/%ARCH%/%LANG%/Firefox%%20Setup%%20%VERSION%.exe %DOWNLOADFILE% >NUL

:: install firefox
"%DOWNLOADFILE%" /S /PreventRebootRequired=true