Examine source code of LNemail

{
  "manifest_version": 3,
  "name": "LNemail",
  "version": "0.2.0",
  "description": "Anonymous Lightning-paid email: create fresh LNemail addresses while signing up, autofill them, open inboxes in one click, and auto-pay renewals with Nostr Wallet Connect.",
  "homepage_url": "https://lnemail.net",
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@lnemail.net",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "financialAndPaymentInfo",
          "personalCommunications"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "alarms",
    "notifications",
    "contextMenus"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "inbox-bridge.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "autofill.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}