manifest.json

{
  "name": "DumpItBlue+",
  "version": "3.2",
  "description": "DumpItBlue is a tool that helps to dump Facebook stuff for analysis or reporting purposes.",
  "permissions": ["storage"],
  "host_permissions": ["https://*.facebook.com/"],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/62861-blue-book-icon16.png",
      "32": "images/62861-blue-book-icon32.png",
      "48": "images/62861-blue-book-icon48.png",
      "128": "images/62861-blue-book-icon128.png"
    }
  },
  "icons": {
    "16": "images/62861-blue-book-icon16.png",
    "32": "images/62861-blue-book-icon32.png",
    "48": "images/62861-blue-book-icon48.png",
    "128": "images/62861-blue-book-icon128.png"
  },
  "content_scripts": [
    {
      "matches": ["https://*.facebook.com/*"],
      "js": ["content.js"],
      "run_at": "document_idle"
    }
  ],
  "manifest_version": 3
}