Examine source code of No More Malarkey

{
  "manifest_version": 2,
  "name": "No More Malarkey",
  "version": "0.2",
  "description": "Helps you browse the web without distractions, removing unnecessary clutter, clickbait, and misleading content for a cleaner and more focused browsing experience",
  "icons": {
    "36": "icons/baseline_close_black_48dp.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "css": [
        "hide_elements.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "js": [
        "annoyanceblocker.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cde2c0a7-5195-4adb-920b-bd6d9fd843d7}"
    }
  }
}