Examine source code of DSTax QuickBooks

{
  "manifest_version": 2,
  "name": "DSTax QuickBooks",
  "version": "1.2.12",
  "description": "DsTax Quickbook Extension",
  "icons": {
    "16": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  },
  "options_ui": {
    "page": "options.html"
  },
  "page_action": {
    "default_popup": "popup.html",
    "default_title": "DSTax Quickbooks",
    "default_icon": "icon.png",
    "show_matches": [
      "https://*.intuit.com/*"
    ]
  },
  "background": {
    "scripts": [
      "utils.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.intuit.com/*"
      ],
      "js": [
        "moment.min.js",
        "utils.js",
        "content_script.js"
      ]
    }
  ],
  "permissions": [
    "storage",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3e30476f-eee2-43fa-b254-2a9e4ecc07f3}"
    }
  }
}