Examine source code of LibSpace Boox Connector

{
  "manifest_version": 3,
  "name": "LibSpace Boox Connector",
  "version": "2.0.1",
  "description": "Send any file to your Onyx Boox e-reader in 2 seconds. Drag, drop, done.",
  "permissions": [
    "storage",
    "cookies"
  ],
  "host_permissions": [
    "https://push.boox.com/*",
    "https://send2boox.com/*",
    "https://eur.boox.com/*",
    "https://*.aliyuncs.com/*",
    "https://api.mixpanel.com/*"
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "lib/boox-client.js",
      "background/background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "connector@libspace.io",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}