Examine source code of QuickFileTr

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "1.0.2",
  "default_locale": "en",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_action": {
    "default_title": "QuickFileTr",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "clipboardRead",
    "clipboardWrite",
    "downloads",
    "https://qftr.shuimuext.workers.dev/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "quickfiletr@example.com",
      "data_collection_permissions": {
        "required": [
          "personalCommunications"
        ]
      }
    }
  }
}