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.
長い時間格闘したがこのchromeとやらは何なんだ! 確定申告させなくして税金還付させないつもりだろ。せっかくWebで申請できると思ってカードリーダ買ったのに全然使えないじゃんか! 責任者出てこい!
控えめに言ってゴミアプリ。 開発者は動作チェックをしたのか問い詰めてみたい。 何度起動し直してもナンバー入力欄の表示がされないどころかメイン画面すら開かずのクソ仕様・・・ 因みに手持ちのwin10三台とも全部無理・・・ オブラートに包んで言っても欠陥品! デジタル庁の税金泥棒もよくもまあ無能なプログラマーにアプリ開発を依頼したな。税金の無駄以外の何でもない。 開発者は責任を持ってさっさと作り直せ!
なんじゃこれ。役立たず。
分かりにくい。いや、解らん。
Don't even bother buying an IC card reader, this app is useless... Tried using the app with my android Phone, it didn't work. I bought an IC card reader to try and use it with my PC but it didn't work either. Followed every step and tried 4 different browsers.... It just sends me to the home page after inputting correctly my password. Looking at the reviews no one can use it, terrible. After 5 years in Japan I'm not even surprised anymore, online stuff has never worked.
皆さんも言ってる通り酷く説明がわかりにくい。APまで行ってその後アプリに辿り着けない。あれだけ宣伝しておいて結局紙での申告に誘導しているとしか思えません。チャットも「認識できません」ばかりで結局Q&Aの内容と同じですよね。河野さんこれが現状です。
PC使いこなす私が何故ポータルが利用できないのか不明。インストールは終わって、4拡張機能をオンにしていても使おうとするとまたポータルアプリの画面に戻ってしまい、見えるボタンが【削除する】になる。何故??
まるで使えないです。次どうすれば良いのかまるで分らん
MS Edgeのブラウザで実行したが、Chromeのボタンがどれか、真ん中にあるのが釦か、押しても反応せぬ。一体どうしたらよいのか。
全く酷い、1日かけても起動しない昨年の印刷方法でしんこくします。 青嵐