当サイトはユーザー体験を改善するためのメンテナンスを実施中に機能が制限される予定です。記事を読んでもあなたの問題が解決せず質問をしたい場合は、Twitter の @FirefoxSupport、Reddit の /r/firefox で、サポートコミュニティが皆さんを助けようと待機しています。

Mozilla サポートの検索

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

Trying to load sync on a reloaded system, I get this error: "Bad configuration, unable to determine your firefox account server configuration. please try again.

  • 1 件の返信
  • 3 人がこの問題に困っています
  • 1 回表示
  • 最後の返信者: cor-el

more options

I was running Windows 8, I.T. did a complete reload of my machine(Dell Latitude ES440) and installed Windows 10. I had my old system SYNCed, but when I try to log in to my account, I get this error: "Bad configuration, unable to determine your firefox account server configuration. please try again." I have tried restarting Firefox, rebooting my machine, and even starting firefox in safe mode to no avail.

I was running Windows 8, I.T. did a complete reload of my machine(Dell Latitude ES440) and installed Windows 10. I had my old system SYNCed, but when I try to log in to my account, I get this error: "Bad configuration, unable to determine your firefox account server configuration. please try again." I have tried restarting Firefox, rebooting my machine, and even starting firefox in safe mode to no avail.

すべての返信 (1)

more options

In case of issues with Sync you can try this:

Disconnect from Sync and Reconnect to Sync again. You can disconnect from Sync by clicking the e-mail address in the "3-bar" Firefox menu button drop-down list or go to "Options/Preferences > Sync".

Delete the signedInUser.json file in the Firefox profile folder and delete the Weave folder (Sync was formerly named Weave).

Remove an existing chrome://FirefoxAccounts entry in the Firefox Password Manager. If that isn't enough then delete the prefs.js files to reset all prefs and maybe also delete the compatibility.ini file to reinitialize the profile.

Delete and re-create the Firefox account or change the Sync password. Note that changing the Sync password will wipe all data stored on the Sync server.

Can you log in to the Sync account via this page?


You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.