Examine source code of SecondChat.app

{
  "manifest_version": 3,
  "name": "SecondChat",
  "version": "1.0.0",
  "description": "The real-time conversation layer for the web. Chat with anyone on the same page.",
  "homepage_url": "https://secondchat.app",
  "permissions": [
    "storage",
    "tabs",
    "webNavigation"
  ],
  "host_permissions": [
    "*://*.secondchat.app/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "SecondChat"
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "sidebar_action": {
    "default_title": "SecondChat",
    "default_panel": "panel.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "secondchat@secondchat.app",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "browsingActivity",
          "personalCommunications"
        ],
        "optional": [
          "technicalAndInteraction",
          "personallyIdentifyingInfo"
        ]
      }
    }
  }
}