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.
まるっきりわからない!!!
PCで申請手続きを進めていたら、スマホのマイナポータルアプリでのログインを強要された。 私が所有するスマホがマイナポータルアプリに非対応であったために、PCで手続きを進めていたのに、これではPCのマイナポータルの意義がない。PC単独では手続きを行うことができないのである。 極めて不愉快。操作感も極めて悪い。
PCとぜんぜんつながらない
ぜんぜん前に進めない
よく解らない説明ですね。
同じ事を何度もさせられ先に進めない。
最低のソフト 税金でこんなもの作るな!!
評価できないくらい使い勝手が悪い! ☆を付けないと投稿できないなんておかしい! e-Tax含めて、こんなアプリに税金が大量につぎ込まれるなら 他の有意義なものに予算を廻してくれ!
いやあ、ものすごく使いづらいソフト。これだけ怨嗟の声がレビューに溢れるのも、むべなるかな。星ゼロが妥当。お役所仕事の極致。想定を大きく上回る努力の結果、私は何とか確定申告はできてはいます。何年も付き合わされていますが、もう改める気はないんでしょうね。追加の税金も掛かることでしょうし(盗人に追い銭か)。こんなわけの分からない構造だと、何か手を加えたところで、劇的に改善される見込みもなさそう。役人のチャチャにSEも相当苦労したことでしょう。最近流行りのAIに出直しを頼んでみてはいかがか。
とにかく不親切。星一つもつけたくない