Examine source code of Clickomatic

{
  "manifest_version": 2,
  "name": "Clickomatic",
  "description": "Automatic button clicker for repeated clicks. It can for example be used on live streams to spam a like button.Give your favorite streamer some love!",
  "version": "1.0.1",
  "author": "Tommy Holmberg",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "popup.html",
    "theme.js",
    "modules/*.js"
  ],
  "browser_action": {
    "default_title": "Clickomatic Controls"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "clickomatic@tommyholmberg.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}