Examine source code of Fastboy Tools

{
  "manifest_version": 3,
  "name": "Fastboy Tools",
  "version": "1.8.4",
  "description": "Powerful tool to delete cookies, local storage, session storage, and cache for domains with whitelist support.",
  "permissions": [
    "cookies",
    "browsingData",
    "activeTab",
    "tabs",
    "storage",
    "scripting",
    "privacy",
    "webRequest"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "fastboy-tools@fastboy.vn",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "websiteActivity",
          "browsingActivity"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon-16.png",
      "48": "icon-48.png"
    }
  },
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  }
}