Examine source code of Influencer Export

{
  "manifest_version" : 3 ,
  "name" : "Influencer Export",
  "version" : "1.0.0",
  "description" : "Download your own Amazon Influencer video review clips for personal backup and reuse.",
  "permissions" : [
    "webRequest" ,
    "tabs" ,
    "storage" ,
    "downloads" ,
    "alarms" 
  ],
  "host_permissions" : [
    "https://www.amazon.com/*" ,
    "https://m.media-amazon.com/*" ,
    "https://api.influencerexport.app/*" 
  ],
  "background" : {
    "scripts" : [
      "vendor/mux-mp4.min.js" ,
      "background.js" 
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "influencer-export@influencerexport.app",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "personallyIdentifyingInfo"
        ],
        "optional": []
      }
    }
  },
  "options_ui" : {
    "page": "options.html" ,
    "open_in_tab": true
  },
  "content_scripts" : [
    {
      "matches" : [
        "https://www.amazon.com/shop/*" ,
        "https://www.amazon.com/influencer/*" ,
        "https://www.amazon.com/live/video/*" 
      ],
      "js" : [
        "vendor/mux-mp4.min.js" ,
        "content.js" 
      ],
      "run_at" : "document_idle" 
    },
    {
      "matches" : [
        "https://www.amazon.com/creatorhub/manage*" 
      ],
      "js" : [
        "manage.js" 
      ],
      "run_at" : "document_idle" 
    }
  ],
  "action" : {
    "default_popup" : "popup.html",
    "default_icon" : {
      "16" : "icon16.png",
      "48" : "icon48.png",
      "128" : "icon128.png"
    }
  },
  "icons" : {
    "16" : "icon16.png",
    "48" : "icon48.png",
    "128" : "icon128.png"
  }
}