Chrome Extension Downloader (.crx file)

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Chrome Extension Downloader (.crx file)",
  "version": "1.0.1",
  "manifest_version": 3,
  "description": "Download Chrome Extension Files directly as .crx or .zip file depending upon your choice",
  "host_permissions": [
    "*://clients2.google.com/service/update2/crx*",
    "*://clients2.googleusercontent.com/crx/download/*"
  ],
  "permissions": [
    "downloads",
    "tabs",
    "background",
    "declarativeContent"
  ],
  "background": {
    "service_worker": "background.js"
  },
  "icons": {
    "16": "16.png",
    "48": "48.png",
    "128": "128.png"
  },
  "action": {
    "default_icon": {
      "19": "16.png",
      "38": "48.png"
    },
    "default_title": "Inspect contents of the current browser extension",
    "default_popup": "popup.html"
  }
}