Examine source code of DeObfus Email

{
  "manifest_version": 3,
  "name": "DeObfus Email",
  "description": "Convert obfuscated/masked emails to real addresses via right-click and copy. For example, you can copy test[dot]email[at]myemailserver[dot]com as test.email@myemailserver.com.",
  "version": "0.0.1",
  "browser_specific_settings": {
    "gecko": {
      "id": "deobfus-email@extension.com",
      "strict_min_version": "115.0"
    }
  },
  "permissions": [
    "contextMenus",
    "clipboardWrite",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "32": "icons/32.png",
    "48": "icons/48.png",
    "64": "icons/64.png",
    "96": "icons/96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "src/app.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "src/service_worker.mjs"
    ],
    "type": "module"
  }
}