Navigation Injection

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Navigation Injection",
  "description": "Injects navigation buttons to every web page",
  "version": "2",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "style.css"
      ],
      "js": [
        "jquery-2.1.4.min.js",
        "index.js"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "<all_urls>",
    "storage"
  ],
  "web_accessible_resources": [
    "home.png",
    "back.png"
  ],
  "options_page": "options.html"
}