Examine source code of Wizdler

{
  "name": "Wizdler",
  "version": "1.33resigned1",
  "manifest_version": 2,
  "description": "Parses the WSDL files and generates SOAP messages for you.",
  "incognito": "spanning",
  "icons": {
    "16": "images/asmx16.png",
    "32": "images/asmx32.png",
    "128": "images/asmx128.png"
  },
  "page_action": {
    "default_icon": "images/asmx16.png",
    "default_title": "Browse WSDL...",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "scripts/content-script.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "web_accessible_resources": [
    "images/paypal.gif"
  ],
  "permissions": [
    "tabs",
    "<all_urls>",
    "http://*/",
    "https://*/"
  ],
  "gecko": {
    "id": "wizdler@prikryl.ninja",
    "strict_min_version": "48.0",
    "strict_max_version": "50.*"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8e591fd4-8923-47d9-be8b-127b215dd95a}"
    }
  }
}