Examine source code of Ummy Radio

{
  "manifest_version": 2,
  "name": "__MSG_info_name__",
  "description": "__MSG_info_description__",
  "author": "Magicbit, Inc",
  "version": "1.4.5resigned1",
  "homepage_url": "http://radionline.fm/",
  "default_locale": "en",
  "icons": {
    "16": "icons/button.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "19": "icons/button.png"
    },
    "default_title": "Ummy Radio",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "js/main.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://radionline.fm/*"
      ],
      "js": [
        "includes/radionline_fm.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "applications": {
    "gecko": {
      "id": "{1717DBA2-F382-4EA7-A647-2FBF413EC217}",
      "strict_min_version": "48.0"
    }
  }
}