Examine source code of Moz Update Checker

{
  "manifest_version": 2,
  "author": "Ryan Steed",
  "homepage_url": "https://github.com/ryan-steed-usa/moz-update-checker/",
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "browser_specific_settings": {
    "gecko": {
      "id": "{8cbad96a-a48e-4f74-8c6d-6b3528cde1aa}",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "version": "1.1.0",
  "permissions": [
    "alarms",
    "menus",
    "notifications",
    "storage"
  ],
  "optional_permissions": [
    "https://sourceforge.net/projects/portableapps/rss*"
  ],
  "icons": {
    "16": "images/status-unknown.svg",
    "24": "images/status-unknown.svg",
    "32": "images/status-unknown.svg",
    "48": "images/status-unknown.svg",
    "64": "images/status-unknown.svg",
    "96": "images/status-unknown.svg",
    "128": "images/status-unknown.svg"
  },
  "background": {
    "scripts": [
      "shared_functions.js",
      "background_script.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": {
      "16": "images/status-unknown.svg",
      "24": "images/status-unknown.svg",
      "32": "images/status-unknown.svg",
      "48": "images/status-unknown.svg",
      "64": "images/status-unknown.svg",
      "96": "images/status-unknown.svg",
      "128": "images/status-unknown.svg"
    },
    "default_popup": "browser_action/browser_action.html",
    "default_title": "__MSG_extensionName__"
  },
  "options_ui": {
    "page": "options/options.html"
  },
  "default_locale": "en"
}