Examine source code of History Exporter

{
  "manifest_version": 2,
  "name": "History Exporter",
  "version": "1.3",
  "description": "Export browser history for the critical curriculum project.",
  "permissions": [
    "history",
    "downloads",
    "cookies",
    "tabs",
    "alarms",
    "storage",
    "https://survey.ifkw.lmu.de/*",
    "https://soscisurvey.de/*",
    "https://nx1581.your-storageshare.de/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "history-exporter@example.com",
      "strict_min_version": "88.0"
    }
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Export History"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}