Examine source code of Easy PDF Converter

{
  "manifest_version": 2,
  "name": "Easy PDF Converter",
  "description": "Convert various file formats to/from PDF documents with new tab page",
  "options_page": "options.html",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "version": "1.1resigned1",
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "applications": {
    "gecko": {
      "id": "easy-pdf-converter-toolbarteam101@gmail.com",
      "strict_min_version": "42.0"
    }
  },
  "icons": {
    "16": "images/pdf-16.png",
    "48": "images/pdf-48.png",
    "128": "images/pdf-128.png"
  },
  "browser_action": {
    "default_icon": "images/pdf-128.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ]
}