Examine source code of Instagram ID Opener

{
  "manifest_version": 2,
  "name": "Instagram ID Opener",
  "version": "1.0",
  "description": "Select any text, use it as an Instagram ID, and open the profile in a new tab instantly",
  "icons": {
    "48": "icon.png"
  },
  "background": {
    "scripts": [
      "index.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "menus",
    "tabs",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{93e314b0-b641-4043-b7cd-3f12b051db5e}"
    }
  }
}