Examine source code of Startup Lock

{
  "manifest_version": 2,
  "name": "Startup Lock",
  "version": "1.0.1",
  "description": "Password-locks the browser on startup. One password unlocks; a second, duress password silently wipes all browsing data.",
  "author": "Max Tahmasebi",
  "homepage_url": "https://github.com/maca-sys/FirefoxStartupLock",
  "icons": {
    "48": "icon.svg",
    "96": "icon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "startup-lock@max-ta.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "tabs",
    "storage",
    "idle",
    "browsingData",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "crypto.js",
      "background.js"
    ],
    "persistent": true
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "lock.html"
  ]
}