Examine source code of Gooding Toolbar

{
  "name": "__MSG_appName__",
  "version": "2.1.50",
  "manifest_version": 2,
  "description": "__MSG_appDescription__",
  "icons": {
    "16": "icons/icon-16.png",
    "128": "icons/icon-128.png"
  },
  "default_locale": "en",
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "http://*/*",
    "https://*/*",
    "unlimitedStorage",
    "cookies",
    "webNavigation"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "exclude_matches": [
        "*://*/*.png*",
        "*://*/*.pdf*",
        "*://*/*.jpg*",
        "*://*/*.bmp*",
        "*://*/*.tiff*",
        "*://*/*.jpeg*",
        "*://*/*.mov*",
        "*://*/*.mpeg*"
      ],
      "js": [
        "scripts/toolbar.js"
      ],
      "css": [
        "styles/toolbar.css"
      ],
      "all_frames": false,
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_icon": {
      "19": "icons/icon-19.png",
      "38": "icons/icon-38.png"
    },
    "default_title": "Gooding Toolbar"
  },
  "web_accessible_resources": [
    "fonts/museo-slab-500.woff",
    "fonts/fontawesome-webfont.woff",
    "images/gooding-logo-toolbar@2x.png",
    "images/house-icon@2x.png",
    "toolbar.html"
  ],
  "applications": {
    "gecko": {
      "id": "gooding-toolbar@gooding.de"
    }
  }
}