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.
事前準備のためファイルをダウンロードしても、同じところをグルグル回らせて先に進まない。
年々使いやすくなっています。これからもよろしくね。
まったく進めない。
しかたないから最低の星をつけたが実際は0点! 自分でやってみろ(怒)
なぜ毎年ちょこちょこ変える? しかもどんどん分りにくくなる。何がしたいのかさっぱり分からない。 まずは自分で1回やってみろ!と言いたい。 税金高過ぎで腹が立っているのに、幾ら税金かけて誰が作っているのか、責任者は誰なのか教えて欲しい。 民間ではアリエナイ。 0点!
全然使えない。わかりにくい。
とんでもない!0点
初めて申告する人は悩むと思う。手順書がどこにあるのか不明です。 パソコンとタブレットが無ければ年配の方は出来ません。 順序よく誰が見ても出来る様に整理しなおして番号をつけるなりしてあげてください。 簡単に出来るとアピ-ルするならば一度年配者にやらせてみるがいい。
ポンコツ!の一言 UI設計とかきちんとやってるんでしょうか。操作もわかりにくいし、e私書箱との連携で企業とつながらず、何度も同じ操作を繰り返して結局諦めました。 これを推進している政府のお偉い人たちは自分たちで使ったことがあるのでしょうかね?
拡張機能追加ボタンはどこのあるのかな・・・諦めました