ChatGPT word counter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "ChatGPT word counter",
  "version": "0.1.0",
  "description": "simple word & character counter extension for ChatGPT. it shows how may words are there in the input before sending a prompt",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/content.js"
      ],
      "matches": [
        "https://chat.openai.com/*"
      ]
    }
  ]
}