Examine source code of MovesCollect Plugin

{
  "manifest_version": 2,
  "name": "MovesCollect Plugin",
  "version": "1.0",
  "description": "This extension will import an item into your MovesScrapbook account",
  "icons": {
    "19": "/public/images/dancer-19px.png",
    "48": "/public/images/dancer-48px.png",
    "128": "/public/images/dancer-128px.png"
  },
  "options_ui": {
    "page": "/app/html/options.html",
    "open_in_tab": false
  },
  "browser_action": {
    "default_title": "MovesCollect",
    "default_icon": "/public/images/dancer-19px.png",
    "default_popup": "/app/html/popup.html"
  },
  "permissions": [
    "activeTab",
    "*://portal.culturemoves.eu/api/*",
    "storage"
  ],
  "applications": {
    "gecko": {
      "id": "culturemoves@in-two.com"
    }
  }
}