Examine source code of CashMaxxx

{
  "browser_specific_settings": {
    "gecko": {
      "id": "{a025fdfc-9e20-4059-b089-914ae8c2b6f1}"
    }
  },
  "author": "Dropping Coconut KG",
  "background": {
    "persistent": true,
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "img/128.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": "default-src 'self'; connect-src * data: blob: filesystem:; style-src 'self' data: chrome-extension-resource: 'unsafe-inline'; img-src 'self' data: chrome-extension-resource:;frame-src 'self' data: chrome-extension-resource:;font-src 'self' data: chrome-extension-resource:;media-src * data: blob: filesystem:;",
  "default_locale": "de",
  "description": "__MSG_extDescription__",
  "icons": {
    "128": "img/128.png"
  },
  "manifest_version": 2,
  "name": "CashMaxxx",
  "omnibox": {
    "keyword": "cashmax"
  },
  "permissions": [
    "storage",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "cookies",
    "<all_urls>"
  ],
  "version": "1.2.3"
}