Webflow Checker

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Webflow Checker",
  "description": "Checks if this page was built in Webflow\nThis Extension tells you really fast if a website was built in Webflow.",
  "version": "1.1.1",
  "author": "Michael Schwartz",
  "manifest_version": 3,
  "background": {
    "service_worker": "background.js"
  },
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_icon": {
      "16": "/images/icon-deactive-16x16.png",
      "32": "/images/icon-deactive-32x32.png",
      "48": "/images/icon-deactive-48x48.png",
      "128": "/images/icon-deactive-128x128.png"
    }
  },
  "icons": {
    "16": "/images/icon-active-16x16.png",
    "32": "/images/icon-active-32x32.png",
    "48": "/images/icon-active-48x48.png",
    "128": "/images/icon-active-128x128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}