AlgCalc

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "AlgCalc",
  "description": "An algebra calculator",
  "version": "1.4",
  "manifest_version": 3,
  "background": {
    "service_worker": "background.js"
  },
  "content_scripts": [
    {
      "js": [
        "js/contextmenus.js"
      ],
      "matches": [
        "*://*.ixl.com/*"
      ]
    }
  ],
  "permissions": [
    "contextMenus",
    "tabs"
  ],
  "host_permissions": [
    "*://*.ixl.com/*"
  ],
  "action": {
    "default_title": "AlgCalc",
    "default_icon": "assets/icon-128.png",
    "default_popup": "popup/popup.html"
  },
  "icons": {
    "16": "assets/icon-16.png",
    "128": "assets/icon-128.png"
  }
}