Examine source code of Reminder | Refunder

{
  "manifest_version": 3,
  "default_locale": "sv",
  "name": "Refunder | Reminder",
  "description": "__MSG_extension_manifest_description__",
  "version": "10.1.1",
  "permissions": [
    "tabs",
    "storage",
    "alarms"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "background": {
    "scripts": [
      "/background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "assets/icons/refunder-16.png",
    "48": "assets/icons/refunder-48.png",
    "128": "assets/icons/refunder-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "Refunder@Refunder.se",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "browsingActivity"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "css/notification.css",
        "assets/icons/refunder-1024.png",
        "assets/icons/refunder-48.png",
        "assets/styles/serp.css"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ]
}