NFC Reader - Browser Extension

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "NFC Reader - Browser Extension",
  "manifest_version": 2,
  "version": "1.3.1",
  "description": "Browser extension for uFR Series NFC Readers",
  "permissions": [
    "activeTab",
    "nativeMessaging",
    "tabs"
  ],
  "icons": {
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "contentscript.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_icon": "icon128off.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}