Examine source code of Pinned Tab Limiter

{
  "manifest_version": 2,
  "name": "No Pinned Tabs",
  "version": "1.3",
  "description": "Blocks or limits tab pinning",
  "permissions": [
    "tabs",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "icons": {
    "48": "icons/nopin48.png",
    "96": "icons/nopin96.png",
    "128": "icons/nopin128.png"
  },
  "browser_action": {
    "default_title": "No Pinned Tabs",
    "default_icon": {
      "16": "icons/nopin16.png",
      "32": "icons/nopin32.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bbd09ac9-8df8-4ea9-8910-bc22d4829d95}"
    }
  }
}