Examine source code of Wikipedia with MathJax

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  "name": "Wikipedia with MathJax (Development version)",
  "version": "0.0.14resigned1",
  "icons": {
    "16": "wiki-mjax-16.png",
    "48": "wiki-mjax-48.png",
    "128": "wiki-mjax-128.png"
  },
  "description": "Renders Wikipedia equations with MathJax",
  "web_accessible_resources": [
    "texvc.js"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.wikipedia.org/*",
        "https://*.wikibooks.org/*",
        "http://*.wikiwand.com/*",
        "https://*.wikiwand.com/*"
      ],
      "js": [
        "jquery-3.3.1.min.js",
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{75f0df05-71b6-429c-a3a0-98bea5248cd5}"
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}