Examine source code of X Copy Replacer

{
  "manifest_version": 2,
  "name": "xToFx",
  "author": "Kiwi Soup",
  "version": "1.0.3",
  "permissions": [
    "clipboardWrite",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.x.com/*",
        "*://*.twitter.com/*"
      ],
      "js": [
        "copyReplacer.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "optionsPages/quick-options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "xToFx@example.com"
    }
  }
}