Examine source code of Context menu search GMaps

{
  "manifest_version": 2,
  "name": "Google Maps search from context menu",
  "version": "1.0",
  "description": "This extension allows the user to search with selected text in Google Maps, directly from the context menu",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "tabs"
  ],
  "icons": {
    "16": "icons/16_light.png",
    "32": "icons/32_light.png",
    "48": "icons/48_light.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dda13c42-f0c9-4f47-846e-28b49eb598f8}"
    }
  }
}