Examine source code of IrregularVerbsList

{
  "manifest_version": 2,
  "name": "IrregularVerbsList",
  "version": "1.0",
  "homepage_url": "https://github.com/Enkidu-Chains/IrregularVerbList",
  "icons": {
    "48": "/favicon.ico"
  },
  "browser_action": {
    "default_popup": "/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{06bd445a-3e1f-4da5-945e-90c153efdefc}"
    }
  }
}