Examine source code of Mathify

{
  "manifest_version": 2,
  "name": "Mathify",
  "version": "1.0",
  "description": "Permet de visualiser les expressions mathématiques latex dans les emails (et ailleurs) \n Clic droit sur la page > Mathify Page Ou Mathify Selection",
  "icons": {
    "48": "icons/mathmail.png"
  },
  "background": {
    "scripts": [
      "MathifyBackground.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "MathJaxConfig.js",
        "mathjax/es5/tex-mml-svg.js",
        "Mathify.js"
      ]
    }
  ],
  "permissions": [
    "contextMenus",
    "menus",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "mathify@elvanaud.minesparis.psl",
      "strict_min_version": "58.0"
    }
  }
}