Examine source code of CrossFireRadio Player

{
  "manifest_version": 2,
  "name": "CrossFire Radio Player",
  "version": "1.0",
  "description": "A simple Firefox extension that lets you listen to CrossFire Radio — an indie band radio station — right from your toolbar.",
  "browser_action": {
    "default_title": "CrossFireRadio",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.svg",
      "32": "icons/icon32.svg",
      "48": "icons/icon48.svg",
      "128": "icons/icon128.png"
    }
  },
  "permissions": [
    "storage",
    "theme",
    "https://*.cdnstream.com/*",
    "https://music.crossfire-radio.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "crossfireradio@crossfireradio.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  }
}