Avatar for Username

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 is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

  • 1 件の返信
  • 13 人がこの問題に困っています
  • 1 回表示
  • 最後の返信者: Matt_G

archermjones
archermjones
more options

Every time I go to open Firefox I get this message: Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

Every time I go to open Firefox I get this message: Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

すべての返信 (1)

Matt_G
Matt_G
more options

Hi archermjones,

Have you looked at the Knowledge Base article "Firefox is already running but is not responding" error - How to fix? There is a lot of good troubleshooting information in the article.

Hopefully this helps!