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.
これが使いにくいって人たちはPC向いてないと思う
使いにくいです。
1,000,000+ ユーザーのうちたった247人のレビュー ぱっと出てくるのが✨1の人たち ゴミとか使えないと言う前に自分の環境見直しましょうね? 自分でできもしない事にブチギレる前に さっさと役所に行って安月給の役人にため息つかれながらやってもらったほうが向いてます。
こんな難しい操作はありえないと思います。 バージョンアップくらい、そのたびに行えるようにしてもらいたい。
こんな使えないのもめずらしい。素人には全く理解できない 仕組み。役所のシステムは何でこんなに酷いのばかりなのか? 税金の無駄遣いとしか思えません。ほんとは0点。
ゴミ
全く使えない。星☆の一つも差し上げたくない。
ひどい。使い方が分からないので、すぐ削除。
これまで見たどのシステムよりも複雑でわかりにくい。 ネットで検索してもまともな回答が得られず、 ひたすらたらい回しにされ、永遠に回答にたどり着かない。
これは使えない、どうしたらいいのか?