Examine source code of CacheCannon

{
  "manifest_version": 2,
  "name": "CacheCannon",
  "version": "1.0.0",
  "description": "One-click cache purge, hard refresh, and dev testing launcher. By LXB Studio LLC.",
  "author": "LXB Studio LLC",
  "homepage_url": "https://cachecannon.com",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "CacheCannon - Purge & Reload"
  },
  "permissions": [
    "browsingData",
    "storage",
    "activeTab",
    "tabs",
    "contextMenus",
    "notifications"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "cachecannon@lxb-studio.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}