Examine source code of BibTeX Webpage Cite

{
  "manifest_version": 2,
  "name": "BibTeX Webpage Cite",
  "version": "1.0",
  "description": "Shows BibTeX/BibLaTeX citation for the current webpage",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon.png"
    }
  },
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{96d4fecc-5d90-4049-955c-eff721d1e428}"
    }
  }
}