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manifest.json

{
  "manifest_version": 3,
  "version": "0.3.0",
  "name": "Web Messenger",
  "description": "Access to WhatsApp official Web messenger in a standalone sandboxed window",
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png",
    "256": "data/icons/256.png"
  },
  "homepage_url": "https://add0n.com/whatsapp-messenger.html",
  "permissions": [
    "storage"
  ],
  "action": {},
  "content_scripts": [
    {
      "matches": [
        "*://web.whatsapp.com/"
      ],
      "js": [
        "data/inject.js"
      ],
      "css": [
        "data/inject.css"
      ],
      "all_frames": true,
      "run_at": "document_start"
    }
  ],
  "background": {
    "service_worker": "background.js"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "data/window/home.svg",
        "data/window/reload.svg",
        "data/window/settings.svg",
        "data/dom.js"
      ],
      "matches": [
        "*://web.whatsapp.com/*"
      ]
    }
  ],
  "options_ui": {
    "page": "data/options/index.html"
  },
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}