Examine source code of Native MathML

{
  "manifest_version": 2,
  "name": "Native MathML",
  "version": "1.9.6",
  "description": "Force MathJax/KaTeX/MediaWiki to use native MathML rendering.",
  "author": "Frédéric Wang",
  "homepage_url": "https://github.com/fred-wang/webextension-native-mathml",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "css": [
        "content-scripts/katex.css",
        "content-scripts/mathjax-v3.css",
        "content-scripts/mediawiki.css"
      ],
      "js": [
        "content-scripts/mathjax-v2-menu-cookie.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "jid1-fGtBdrROY6E1gA@jetpack"
    }
  }
}