manifest.json

{
  "name": "Reveal Deleted FB Messages",
  "description": "Xem lại tin nhắn đã gỡ trên fb",
  "version": "0.0.4",
  "manifest_version": 3,
  "action": {
    "default_title": "Reveal Deleted FB Message",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "24": "icons/icon24.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    }
  },
  "externally_connectable": {
    "matches": ["*://*.facebook.com/*"]
  },
  "permissions": [],
  "host_permissions": ["*://*.facebook.com/*"],
  "content_scripts": [
    {
      "js": ["./content.js"],
      "matches": ["*://*.facebook.com/*"],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "inject_websocket.js",
        "icons/icon16.png",
        "icons/icon32.png"
      ],
      "matches": ["<all_urls>"]
    }
  ]
}