Examine source code of JSON-LD Schema Extractor

{
  "manifest_version": 2,
  "name": "JSON-LD Schema Extractor",
  "version": "1.4",
  "description": "Extracts JSON-LD schema from webpages and displays it in different formats",
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "58.0",
      "id": "{96966aa9-a5fc-4392-b3b8-adc3ca9e2736}"
    }
  }
}