Examine source code of Cookie Sniper

{
  "manifest_version": 2,
  "name": "Cookie Sniper",
  "version": "1.0.1",
  "description": "Removes specific coookies.",
  "homepage_url": "https://gitlab.com/ariacorrente/cookie-sniper",
  "browser_specific_settings": {
    "gecko": {
      "id": "cookie-sniper@dominiofelice.com"
    }
  },
  "icons": {
    "48": "icons/cookie-sniper-48.png",
    "96": "icons/cookie-sniper-96.png"
  },
  "permissions": [
    "cookies",
    "<all_urls>",
    "webNavigation",
    "storage"
  ],
  "background": {
    "scripts": [
      "browser-polyfill.js",
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "page_action": {
    "browser_style": true,
    "default_icon": {
      "19": "icons/cookie-sniper-19.png",
      "38": "icons/cookie-sniper-38.png"
    },
    "default_title": "Cookie Sniper"
  }
}