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。

I have a message to say my firefox is out of date and in danger. What should I do? Is it safe to download a new version for my Mc laptop? Thanks

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

more options

Is it safe to download the new Firefox on my Mac Laptop and how do I get rid of the old one? Many Thanks

Is it safe to download the new Firefox on my Mac Laptop and how do I get rid of the old one? Many Thanks

選ばれた解決策

More like 7 versions if you include minor updates (57.0-57.0.4, 58.0, 58.0.1). Note that 58.0.2 is likely to be released during the next days.


If there a problem with updating or with the permissions then best is to download the full version and trash the currently installed Firefox application to do a clean reinstall.

Download a new copy of the Firefox application and save the Disk Image file to the desktop

Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data When you uninstall and reinstall or update Firefox, but make sure NOT to remove personal data When you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

この回答をすべて読む 👍 0

すべての返信 (3)

more options

Hello, you can get the latest version here: https://firefox.com

It is safe to install the new version over the old one.

If this solved your problem, please mark as solution.

この投稿は Mkll により に変更されました

more options

And yes, you are two versions behind.

more options

選ばれた解決策

More like 7 versions if you include minor updates (57.0-57.0.4, 58.0, 58.0.1). Note that 58.0.2 is likely to be released during the next days.


If there a problem with updating or with the permissions then best is to download the full version and trash the currently installed Firefox application to do a clean reinstall.

Download a new copy of the Firefox application and save the Disk Image file to the desktop

Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data When you uninstall and reinstall or update Firefox, but make sure NOT to remove personal data When you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.