Examine source code of Pinned Tab Fix

{
  "manifest_version": 2,
  "name": "Pinned Tab Fix",
  "version": "0.2.0",
  "description": "(Re)Stores your pinned tabs if they're gone.",
  "icons": {
    "16": "icons/pin-16.png",
    "24": "icons/pin-24.png",
    "32": "icons/pin-32.png",
    "48": "icons/pin-48.png",
    "64": "icons/pin-64.png",
    "72": "icons/pin-72.png",
    "96": "icons/pin-96.png",
    "128": "icons/pin-128.png",
    "512": "icons/pin-512.png"
  },
  "background": {
    "scripts": [
      "tabfix.js"
    ]
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/pin-32.png",
    "default_title": "Pinned Tab Fix",
    "default_popup": "popup/popup.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3b5f3b87-2e10-4907-a8a3-0ffcda294404}"
    }
  }
}