Examine source code of StutterBuddy

{
  "name": "StutterBuddy extension",
  "description": "Submit videos directly to StutterBuddy",
  "version": "1.2.0",
  "manifest_version": 3,
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "180": "icon180.png"
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "getVideos.js"
      ],
      "run_at": "document_start"
    }
  ],
  "action": {
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "IDNeededToUseStorage@firefox.com"
    }
  }
}