Examine source code of PinTab Restorer

{
  "description": "PinTab Restorer automatically brings back your previously pinned tabs after a browser restart or crash, so you can seamlessly continue where you left off",
  "manifest_version": 2,
  "name": "PinTab Restorer",
  "version": "1.0",
  "homepage_url": "https://github.com/guillaumebriday/restore-pinned-tabs",
  "icons": {
    "128": "icons/icon.png"
  },
  "browser_action": {
    "default_title": "Restore pinned tabs",
    "default_icon": "icons/icon.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0ac4d505-e2b5-4576-a51c-afece03e4fd3}"
    }
  }
}