Examine source code of Persian Tab

{
  "name": "Persian Tab",
  "description": "A beautiful Persian new tab page for Firefox",
  "version": "1.0.7",
  "manifest_version": 2,
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "browser_action": {
    "default_title": "تنظیمات Persian Tab",
    "default_icon": {
      "16": "icon/16.png",
      "32": "icon/32.png",
      "48": "icon/48.png",
      "96": "icon/96.png"
    }
  },
  "options_ui": {
    "page": "src/options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "chrome_url_overrides": {
    "newtab": "src/newtab.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "https://suggestqueries.google.com/*",
    "https://favicon.vemetric.com/*",
    "https://icon.horse/*",
    "https://favicon.im/*",
    "https://*.favicon.im/*",
    "https://www.google.com/*",
    "https://api.wallex.ir/*",
    "https://wallgold.ir/*",
    "https://prices.wallgold.ir/*",
    "https://*.gstatic.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "persian-tab@mahdigholami099",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}