# Firefox で誤った 2FA ハードウェアキーを使用すると「Blank」エラーが発生

**URL:** <https://meta.discourse.org/t/blank-error-with-firefox-when-using-the-wrong-2fa-hardware-key/155396>\
**Category:** Bug\
**Created:** [2020 年 6 月 19 日午後 9:42 UTC](https://meta.discourse.org/t/blank-error-with-firefox-when-using-the-wrong-2fa-hardware-key/155396 "2020-06-19T21:42:48Z")\
**Posts on this page:** 1\
**Showing post:** 16

<div class="post-metadata">

**Author:** ![supermathie](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/supermathie/32/507518_2.png) [@supermathie](https://meta.discourse.org/u/supermathie)\
**Post date:** [2026 年 11 月 11 日午前 12:06 UTC](https://meta.discourse.org/t/blank-error-with-firefox-when-using-the-wrong-2fa-hardware-key/155396/16 "2026-11-11T00:06:25Z")

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今日、Firefoxで以下を確認しました：

 ![image](https://global.discourse-cdn.com/meta/original/4X/b/2/4/b241a2488bc37ae92c83ba22477f5c7ca86be97e.png)

 ![image](https://global.discourse-cdn.com/meta/original/4X/8/1/3/813c3331f2e130fc49e45403695a644394ed43fc.png)

 ![image](https://global.discourse-cdn.com/meta/original/4X/e/4/b/e4b20e737f7a7bef8b414fef8da1b1980b392f92.png)

 ![image](https://global.discourse-cdn.com/meta/original/4X/a/2/b/a2bd5a03239e25e33cf47e1009135cbf7eb388f2.png)

Chromeでは明確な理由が示されます：

 ![image](https://global.discourse-cdn.com/meta/original/4X/b/8/c/b8c96c033b548c1a9ff51ec5242e3060db29766c.png)

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