Alternativer til Video Downloader Professional til Thunderbird med open source-licens

• Thunderbird
  Alle platforme Windows Mac Linux Android iPhone iPad Android Tablet Web Firefox Opera Internet Explorer Vivaldi Browser PortableApps.com Pale Moon Chrome Thunderbird Yandex.Browser Vibby
• Open Source-licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens