Examine source code of Time Limit

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "version": "1.8.0",
  "description": "__MSG_extensionDescription__",
  "author": "Dávid Godzsák",
  "homepage_url": "https://github.com/davidgodzsak/firefox-timelimit-extension",
  "icons": {
    "16": "assets/icons/icon-16.png",
    "32": "assets/icons/icon-32.png",
    "48": "assets/icons/icon-48.png",
    "128": "assets/icons/icon-128.png"
  },
  "action": {
    "default_icon": {
      "16": "assets/icons/icon-16.png",
      "32": "assets/icons/icon-32.png",
      "48": "assets/icons/icon-48.png",
      "128": "assets/icons/icon-128.png"
    },
    "default_title": "__MSG_extensionActionTitle__",
    "default_popup": "pages/popup/index.html"
  },
  "background": {
    "scripts": [
      "background_scripts/polyfill.js",
      "background_scripts/background.js"
    ],
    "type": "module"
  },
  "permissions": [
    "storage",
    "alarms",
    "tabs",
    "webNavigation",
    "activeTab",
    "notifications"
  ],
  "options_ui": {
    "page": "pages/settings/index.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    {
      "resources": [
        "pages/timeout/index.html",
        "pages/info/index.html",
        "assets/index.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "distraction-limiter@davidgodzsak.dev",
      "strict_min_version": "112.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}