Examine source code of ZeAaronExtension

{
  "manifest_version": 2,
  "name": "ZeAaronExtension",
  "version": "1.0",
  "description": "L'extension du streamer ZeAaron_ pour la création des clips Twitch",
  "icons": {
    "32": "icons/logo-32.png",
    "48": "icons/logo-48.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/logo-32.png",
    "default_title": "ZeAaronExtension",
    "default_popup": "popup/popup.html"
  },
  "web_accessible_resources": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{48d65e76-add5-419f-a6bc-48922d7f54a1}"
    }
  }
}