Examine source code of Vog

{
  "manifest_version": 2,
  "name": "Vog",
  "version": "1.1resigned1",
  "description": "View OpenGraph data conveniently with a browser extension.",
  "homepage_url": "https://github.com/milesmcc/vog",
  "icons": {
    "48": "icons/extract.svg",
    "96": "icons/extract.svg"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/extract.svg",
    "default_title": "Extract",
    "default_popup": "popup/extract.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bc02a262-8365-4741-9e8c-16f34a4ae631}"
    }
  }
}