Examine source code of qWiki

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "0.0.11",
  "browser_specific_settings": {
    "gecko": {
      "id": "qwiki@online.de"
    }
  },
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "developer": {
    "name": "Daniel Wienzek",
    "url": "https://github.com/dawigit/qwiki"
  },
  "icons": {
    "128": "icons/quickwiki.png"
  },
  "permissions": [
    "activeTab",
    "*://*.wikipedia.org/*",
    "*://*.wiktionary.org/*",
    "*://*.wikimedia.org/*",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "toggle-search": {
      "suggested_key": {
        "default": "Alt+W",
        "linux": "Alt+W"
      },
      "description": "Toggle qWiki Search"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "exclude_matches": [
        "*://fritz.box/*"
      ],
      "js": [
        "content_scripts/quickwiki.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html"
  },
  "web_accessible_resources": [
    "flags/*.png"
  ]
}