Examine source code of jans-tarp

{
  "manifest_version": 3,
  "name": "jans-tarp",
  "version": "1.0.2",
  "description": "Relying Party tool in form of a Firefox Extension.",
  "icons": {
    "16": "icon.png",
    "32": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  },
  "action": {
    "default_title": "jans-tarp",
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage",
    "identity",
    "tabs"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "options_page": "options.html",
  "browser_specific_settings": {
    "gecko": {
      "id": "jans-tarp@gluu.org"
    }
  }
}