Examine source code of WebsiteOpener

{
  "manifest_version": 2,
  "name": "WebsiteOpener",
  "version": "1.1",
  "description": "Opens the Website provided the key.",
  "homepage_url": "https://github.com/Rishi-jha/websiteopener",
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_action": {
    "default_icon": "icons/icon.png",
    "default_title": "WebsiteOpener",
    "default_popup": "popup/ticket.html"
  },
  "permissions": [
    "*://*/*",
    "webNavigation",
    "activeTab",
    "tabs",
    "cookies",
    "storage",
    "<all_urls>"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "applications": {
    "gecko": {
      "id": "rishijha424@gmail.com"
    }
  }
}