Examine source code of Quick Access URL Parts

{
  "author": "igorlogius",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "_execute_page_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+L"
      }
    }
  },
  "page_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.svg",
    "show_matches": [
      "<all_urls>"
    ]
  },
  "icons": {
    "128": "icon.svg"
  },
  "manifest_version": 2,
  "name": "Quick Access URL Parts",
  "permissions": [
    "activeTab"
  ],
  "version": "1.3.8",
  "browser_specific_settings": {
    "gecko": {
      "id": "{5e4babbf-856c-444d-93fb-b83cce67efb2}"
    }
  }
}