Examine source code of Tenant Launcher

{
  "manifest_version": 3,
  "name": "MSP Tenant Launcher",
  "version": "0.3.7",
  "description": "Launch Microsoft 365 customer admin portals inside the correct Firefox Multi-Account Container for each tenant.",
  "browser_specific_settings": {
    "gecko": {
      "id": "msp-tenant-launcher@tenantlauncher.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "personallyIdentifyingInfo"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "action": {
    "default_title": "MSP Tenant Launcher",
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "dist/types.js",
      "dist/tenants.js",
      "dist/storage.js",
      "dist/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://login.microsoftonline.com/*"
      ],
      "js": [
        "dist/content/vault-overlay.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "contextualIdentities",
    "cookies",
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "https://admin.microsoft.com/*",
    "https://admin.microsoft365.com/*",
    "https://admin.exchange.microsoft.com/*",
    "https://entra.microsoft.com/*",
    "https://*.sharepoint.com/*",
    "https://login.microsoftonline.com/*"
  ]
}