Examine source code of Easy Clicker

{
  "manifest_version": 3,
  "name": "Easy Clicker",
  "version": "2.3",
  "description": "Auto-click an element based on a CSS selector and interval.",
  "permissions": [
    "storage",
    "activeTab",
    "tabs"
  ],
  "icons": {
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Easy Clicker",
    "default_icon": "icons/icon-128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "easyclicker@mdawe.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "commands": {
    "start-clicking": {
      "suggested_key": {
        "default": "Alt+Shift+Z",
        "mac": "Alt+Shift+Z"
      },
      "description": "Start clicking"
    },
    "stop-clicking": {
      "suggested_key": {
        "default": "Alt+Shift+X",
        "mac": "Alt+Shift+X"
      },
      "description": "Stop clicking"
    }
  }
}