Examine source code of NervMiNed

{
  "manifest_version": 2,
  "name": "NervMiNed",
  "version": "1.4",
  "description": "Browser Add-on welches uninteressante Themengebiete auf Nachrichtenseiten ausblendet. Im Moment werden die Seiten von ORF, OÖ Nachrichten und Standard unterstützt.",
  "icons": {
    "48": "icons/Logo-48.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "browser_style": true,
    "default_popup": "ui/config.html",
    "default_icon": {
      "16": "icons/Logo-16.png",
      "32": "icons/Logo-32.png",
      "48": "icons/Logo-48.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.orf.at/*",
        "*://*.derstandard.at/*",
        "*://*.nachrichten.at/*"
      ],
      "js": [
        "cleanup.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{461f89f2-e98d-4f69-901b-9430198d354c}"
    }
  }
}