Examine source code of Tracking Research

{
  "manifest_version": 2,
  "name": "Tracking Research",
  "version": "1.1.0",
  "description": "Tracks mouse movement and scrolling behaviour on all pages for research",
  "author": "bolli",
  "homepage_url": "https://tracking-research.bolli.tech",
  "background": {
    "scripts": [
      "lib/browser-polyfill.min.js",
      "lib/pako.min.js",
      "lib/userdataCompression.js",
      "lib/sendUserdata.js",
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/eye-64.png",
    "default_title": "Tracking",
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "*://*/*",
    "storage",
    "unlimitedStorage",
    "cookies"
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "60.0",
      "id": "tracking-research@bolli.tech"
    }
  },
  "minimum_chrome_version": "49.0",
  "icons": {
    "64": "icons/eye-64.png",
    "512": "icons/eye-512.png"
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true,
    "chrome_style": true
  },
  "default_locale": "en"
}