Examine source code of MathML View Source

{
  "manifest_version": 2,
  "name": "MathML View Source",
  "version": "0.0.3resigned1",
  "description": "A 'View MathML Source' context menu item",
  "author": "Frédéric Wang",
  "homepage_url": "https://github.com/fred-wang/webextension-mathml-view-source",
  "icons": {
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png"
  },
  "default_locale": "en_US",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "get-mathml-source.js"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "contextMenus"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@mathml-viewsource"
    }
  }
}