Examine source code of Private History Filter

{
  "manifest_version": 3,
  "name": "Private History Filter",
  "version": "1.0",
  "description": "Automatically removes matching URLs from browser history as they are visited",
  "permissions": [
    "history",
    "storage"
  ],
  "options_page": "options.html",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "private-history-filter@github.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "126.0"
    }
  }
}