Examine source code of MDN Docs

{
  "manifest_version": 2,
  "name": "MDN Docs",
  "version": "1.0",
  "description": "Quickly and efficiently reference the MDN docs.",
  "icons": {
    "48": "icons/mdn-icon-48.png"
  },
  "browser_action": {
    "default_icon": "icons/mdn-icon-48.png",
    "default_title": "MDN Docs",
    "default_popup": "popup/popup.html",
    "browser_style": true
  },
  "permissions": [
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7a6cd28d-d458-4a8e-8ed1-ee60e29c8437}"
    }
  }
}