Alternativer til Trollbox til Firefox med open source-licens

• Firefox
  Alle platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Apple Watch Android Wear iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) Firefox Opera PHP BSD Windows Mobile Haiku PortableApps.com FreeBSD Chrome
• Open Source-licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens