AI 产品解读Browser bridge/launcher enabling My Number Card (マイナンバーカード) digital authentication on Japanese government online services via native messaging to a local card reader application
Japanese residents need a way to use their physical My Number Cards for digital authentication on various government web portals (e-tax, local government services, etc.) through Chrome. The extension acts as a communication bridge between government web pages and the native My Number Card reader application.
User visits a government service website → the website detects the extension via a hidden input element → the website dispatches a 'launchApp' custom event → the content script forwards this to the background service worker → the service worker connects to the native 'jp.go.cao.mpa' messaging host → the native app communicates with the physical card reader to read the My Number Card and request PIN → authentication result is returned through the chain back to the government website.
Injects extension detection signals into government web pages so they can confirm the bridge is installedRelays authentication requests from government websites to the native My Number Card reader app (jp.go.cao.mpa) via Chrome native messagingReturns authentication results from the native app back to the government web pageHandles cleanup/disconnection when pages are unloadedSupports 24+ government and related service domains (*.go.jp, e-taxrenkei.jp, local government portals, etc.)
- 目标用户
- Japanese residents who need to authenticate with online government services using their My Number Card / Users filing taxes, applying for certificates, or accessing local government online portals in Japan
- Extension is very small (4 text files, ~8KB of source), making analysis straightforward
- The native host application (jp.go.cao.mpa) source is not included and is distributed separately via a dedicated installer, so its internals cannot be verified
- No popup UI exists — the extension operates entirely as a content script + background service worker bridge
付费分析未识别到付费功能
No evidence of any paid features, payment platforms, subscriptions, or premium tiers in the extension code. This is a government-provided (内閣府 / Cabinet Office) free tool for enabling My Number Card authentication on government services. The 'pro' keyword hit is only in verified_contents.json metadata and is unrelated to payment.
- 置信度
- 95
- 支付平台
- --
- 来源
- AI / 高
- 需要登录
- 是
- 登录理由
- The extension is a bridge that enables My Number Card (マイナンバーカード) authentication on Japanese government online services. The extension itself has no login UI, but its core workflow requires the user to authenticate via a physical My Number Card + PIN on destination government services (e.g., *.go.jp tax portals, local government sites). The native host app 'jp.go.cao.mpa' handles the card reader interaction, and the government websites require My Number Card-based identity verification to complete any workflow.
何しているか不明。余計な情報を表示してはいけない。混乱するだけ。
昨年までは確定申告はe-Tax で作成申告送信で完了でしたが,マイポータブル登録などでそこから前に進みません。 どうしましょう??
0点.確定申告書作成ページに全然到達しない.納税の意欲を完全に削ぐ.こんなシステムは即時廃棄しろ.納税者を馬鹿にしている.とにかく確定申告させろ.
質問が出ないようなソフトを作れ。かつ簡単に操作できるように。 古いバージョンでもできるように
使いにくい
使えない。
インストール完了していざ手続きを始めようとしても「インストールされていません」と出て、先へ進めない。意味が分からない。
パソコン(ねんきんネット)とスマートフォン(マイナポータル)の連携がちっともうまく行かない。 ペーパーレスができない。
ほんとに使いづらいです。どうやって使えと?
確定申告の医療費控除の為にPCへインストールしましたが、カードリーダーを接続して マイナカードを使ってみてましたが 意味不明のエラー表示で改善方法もわからず、お手上げ状態です。 もう少し分かりやすくしてほしいです