Footinator

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Footinator",
  "short_name": "Footinator",
  "description": "This extension removes the footer that cloudHQ puts at the bottom of their email.",
  "version": "1",
  "icons": {
    "16": "images/email-16.png",
    "48": "images/email-48.png",
    "128": "images/email-128.png"
  },
  "permissions": [
    "tabs",
    "*://*.google.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://mail.google.com/*"
      ],
      "js": [
        "thirdparty/jquery-3.2.1.min.js",
        "js/app.js"
      ]
    }
  ]
}