Examine source code of anti instagram js

{
  "manifest_version": 3,
  "name": "Anti Instagram Login",
  "version": "1.3.0",
  "description": "Removes Instagram's login wall so you can view profiles and posts without logging in. Includes a download button for photos and videos on post pages, plus exact dates on all timestamps.",
  "icons": {
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage",
    "scripting",
    "downloads"
  ],
  "host_permissions": [
    "*://*.instagram.com/*",
    "*://*.cdninstagram.com/*",
    "*://*.fbcdn.net/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "anti-ig-login@anti-js.github.io",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "css": [
        "styles.css"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": false
    }
  ]
}