Convert (crypto)currency

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Convert (crypto)currency",
  "description": "Context menu option to convert selected crypto/fiat value - displays the result in a simple tooltip.",
  "version": "1.4",
  "icons": {
    "128": "exchange.png"
  },
  "background": {
    "service_worker": "background.js"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "api.js",
        "crypto-context.js"
      ]
    }
  ],
  "permissions": [
    "contextMenus",
    "storage"
  ],
  "host_permissions": [
    "https://api.coinbase.com/*"
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  }
}