Alternativas ao NowDownload para Firefox com licença comercial

• Firefox
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Windows Mobile Wordpress Microsoft Office Outlook Raspberry Pi Ubuntu S60 Chrome Debian CentOS Chrome Web Store Cloudron Red Hat
• Licença comercial
  Qualquer licença Licença gratuita Licença Open Source Licença comercial