Simple Bulk WA Sender

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Simple Bulk WA Sender",
  "description": "Send whatsapp bulk messages!",
  "version": "1.0.0",
  "manifest_version": 3,
  "host_permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "inject.js",
        "jquery-3.6.0.min.js",
        "popup.js",
        "xlsx.full.min.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "jquery-3.6.0.min.js",
        "xlsx.full.min.js",
        "contentscript.js"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html"
  }
}