Examine source code of Wayback Saver

{
  "manifest_version": 2,
  "name": "Wayback Saver",
  "version": "421",
  "description": "Submit any page to the Internet Archive Wayback Machine with one click.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{0bbdc248-0a6b-4f53-8e98-37b65a7cce6e}",
      "strict_min_version": "96.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "browser_action": {
    "default_icon": {
      "16": "img/icon16.png",
      "32": "img/icon32.png",
      "48": "img/icon48.png",
      "96": "img/icon96.png",
      "128": "img/icon128.png"
    },
    "default_title": "Wayback Saver",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "img/icon16.png",
    "32": "img/icon32.png",
    "48": "img/icon48.png",
    "96": "img/icon96.png",
    "128": "img/icon128.png"
  },
  "permissions": [
    "tabs"
  ]
}