Examine source code of FNG Status Plugin

{
  "name": "FNG Status Plugin",
  "version": "2.2.5",
  "manifest_version": 2,
  "description": "A FireFox Extension created for the FearNixx Community to monitor the uptime status.",
  "homepage_url": "https://github.com/JosunLP/fng_status_plugin",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_icon": "icons/icon16.png",
    "default_title": "FNG Status Plugin",
    "default_popup": "popup.html"
  },
  "permissions": [
    "notifications"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "fng-status-plugin@josunlp.de"
    }
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+F",
        "mac": "MacCtrl+Shift+F"
      },
      "description": "Opens index.html"
    }
  }
}