Examine source code of Wayback Machine Tools

{
  "manifest_version" : 3 ,
  "browser_specific_settings": {
    "gecko": {
      "id": "wbmtools@tbwcjw",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "name" : "Wayback Machine Tools",
  "version" : "1.1",
  "description" : "Tools for using the Wayback Machine: including viewing raw pages, and their source code.",
  "homepage_url" : "https://github.com/tbwcjw/wbmtools-firefox",
  "author": "tbwcjw",
  "icons" : {
    "32" : "icon/icon.svg",
    "48" : "icon/icon.svg",
    "96" : "icon/icon.svg"
  },
  "permissions" : [
    "activeTab" ,
    "tabs" 
  ],
  "action" : {
    "default_title" : "Wayback Machine Tools",
    "default_popup" : "popup/popup.html"
  },
  "background" : {
    "scripts" : [
      "wb.js" ,
      "background.js" 
    ]
  },
  "content_scripts" : [
    {
      "matches" : [
        "*://web.archive.org/web/*" 
      ],
      "js" : [
        "wb.js" ,
        "content.js" 
      ],
      "run_at" : "document_idle" 
    }
  ]
}