Alternativy k HEAD pro Firefox s bezplatnou licencí

• Firefox
  Všechny platformy Windows Mac Linux Chrome OS Android iPhone Windows Phone iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari PHP jQuery Electron / Atom Shell Chrome Microsoft Edge SQLite NGINX Liveweave jsFiddle JS Bin Plunker CodePen
• Bezplatná licence
  Jakákoli licence Bezplatná licence Licence Open Source Komerční licence