Examine source code of Quick Maps

{
  "manifest_version": 2,
  "name": "Quick Maps",
  "version": "0.0.2",
  "description": "Quick Google Maps search from selected text with context menu and double-click support",
  "author": "Bordo Studios",
  "permissions": [
    "activeTab",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "48": "icon-48.png",
    "96": "icon-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      },
      "id": "bordos5000@gmail.com"
    }
  }
}