Examine source code of Telegram Link Sharer

{
  "manifest_version": 2,
  "name": "Telegram Link Sharer",
  "version": "1.0.0",
  "description": "Share URLs and messages from Firefox to Telegram via bot",
  "icons": {
    "48": "icon-48.png",
    "96": "icon-96.png"
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "activeTab",
    "notifications",
    "tabs"
  ],
  "commands": {
    "share-current-tab": {
      "suggested_key": {
        "default": "Ctrl+Y",
        "mac": "MacCtrl+Y"
      },
      "description": "Share current tab to Telegram"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "telegram-linksharer@extension.local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}