Build Your Own WebExtension
Add-on for Firefox

Martin Giger



  • Introduction
  • Build your first WebExtension
  • Create an original add-on and share it on
  • Continue the conversation

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Please ensure you have the latest Firefox Developer Edition

Which extensions do you use?

Do you know...

  • JS?
  • HTML?
  • WebExtensions/Chrome Extensions?

About Add-ons

  • WebExtensions are one or more HTML pages
  • They get additional APIs to
    • Block ads
    • Re-style websites
    • Show notifications
    • and a lot more
  • WebExtensions can be compatible with Firefox, Edge, Chrome and Opera

Build your first WebExtension

Great Work!

What now?

Continue the Conversation

Get involved with WebExtensions