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。

Firefox crashes

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

more options

I keep getting an error message when I try to open firefox that says 'missing profile' and that my 'profile is missing or inaccessible.' The browser never opens. I have uninstalled and reinstalled it - same issue, even when it first tries to open upon reinstallation.

I keep getting an error message when I try to open firefox that says 'missing profile' and that my 'profile is missing or inaccessible.' The browser never opens. I have uninstalled and reinstalled it - same issue, even when it first tries to open upon reinstallation.

すべての返信 (2)

more options

What is your operating system? Windows?

It sounds like the profile cannot be created or accessed by Firefox. If this is on Windows, it might be due to not running Firefox or the installer with sufficient privileges; the fix is to try running either as an administrator with the Run as administrator option: http://www.sevenforums.com/tutorials/11841-run-administrator.html.

You can also try starting Firefox in Safe Mode by holding Shift before you start Firefox. Check Task Manager (again, if on Windows) to see that no instances of firefox.exe are running.

This article has suggestions for what to do if your profile cannot be found: https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible.

more options

You need to locate the profiles.ini file and delete this file or use the Profile Manager to create a new profile.

See:


This is usually caused by a problem with the profiles.ini file.

You can use one of these to make Firefox create a new default profile or recover an existing profile:

  • Delete the profiles.ini file to make Firefox create a new (default) profile
  • Use the Profile Manager to create a new profile
    If you still have an existing profile then click "Choose Folder" in the Profile Manager and browse to the location of a lost profile to recover this profile
    https://support.mozilla.org/kb/Managing+profiles

You should find the profiles.ini file in this hidden location:

  • Windows: %AppData%\Mozilla\Firefox\
    *C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\
  • Mac: ~/Library/Application Support/Firefox/
  • Linux: ~/.mozilla/firefox/

If clearing the profiles.ini file isn't working then also check the location of the cache files.

  • Windows: *C:\Users\<user>\AppData\Local\Mozilla\Firefox\Profiles\<profile>\
  • Mac: ~/Library/Caches/Firefox/Profiles/
  • Linux:~/.cache/mozilla/firefox/