$date = Get-Date -Format "yyyy-MM-dd HH:mm"

"$date Start Run" | Out-File 'C:\logs\customize.log' -Append
$date = Get-Date -Format "yyyy-MM-dd HH:mm"
"$date create install dir" | Out-File 'C:\logs\customize.log' -Append
New-Item -Path "c:\" -Name "install" -ItemType "directory"
$date = Get-Date -Format "yyyy-MM-dd HH:mm"
"$date download firefox" | Out-File 'C:\logs\customize.log' -Append
Invoke-WebRequest -Uri "https://download.mozilla.org/?product=firefox-latest-ssl&os=win64&lang=de" -OutFile "c:\install\firefox.exe"
$date = Get-Date -Format "yyyy-MM-dd HH:mm"
"$date install firefox" | Out-File 'C:\logs\customize.log' -Append
c:\install\firefox -ms

$date = Get-Date -Format "yyyy-MM-dd HH:mm"
"$date Finish Run" | Out-File 'C:\logs\customize.log' -Append