Chrome renamer Extension

manifest.json

{
  "manifest_version": 2,
  "name": "Extension name",
  "description": "Description",
  "version": "1.0",
  "content_scripts": [
    {
      "matches": [
        "https://www.seznam.cz/"
      ],
      "js": [
        "rename.js"
      ],
      "run_at": "document_end"
    }
  ]
}

rename.js

console.log('renaming');
document.body.innerHTML = document.body.innerHTML.replace(/Email/g, 'THIS IS NOT EMAIL');