Examine source code of Google search tab fixer

{
  "name": "Google search tab fixer",
  "version": "0.0.5resigned1",
  "manifest_version": 2,
  "description": "Allows users to cycle through google search results by pressing the tab key.",
  "homepage_url": "http://101drum.com",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "default_locale": "en",
  "page_action": {
    "default_icon": "icons/icon19.png",
    "default_title": "page action demo",
    "default_popup": "src/page_action/page_action.html"
  },
  "permissions": [
    "*://*/search*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/search*"
      ],
      "run_at": "document_start",
      "js": [
        "src/inject/inject.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8a0d21a5-5400-4ab9-a563-9f2ef9039130}"
    }
  }
}