Examine source code of GitHub SSO Auto-Continue

{
  "manifest_version" : 3 ,
  "name" : "GitHub SSO Auto-Continue",
  "version" : "1.0",
  "description" : "Automatically clicks the Continue button on GitHub Single Sign-On pages",
  "browser_specific_settings": {
    "gecko": {
      "id": "github-sso-auto-continue@nikitabobko",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions" : [
    "activeTab" ,
    "scripting" ,
    "storage" 
  ],
  "host_permissions" : [
    "*://github.com/*" ,
    "*://accounts.google.com/*" 
  ],
  "content_scripts" : [
    {
      "matches" : [
        "*://github.com/*" ,
        "*://accounts.google.com/v3/signin/*" 
      ],
      "js" : [
        "content.js" 
      ],
      "run_at" : "document_end" 
    }
  ]
}