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 is a little slow. If I reset, will I have to reinstall all the addons I have?

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

more options

firefox is a little slower than Chrome but I like it better. If I reset, will I have to reinstall all the addons I have?

firefox is a little slower than Chrome but I like it better. If I reset, will I have to reinstall all the addons I have?

すべての返信 (2)

more options

What problem(s) are you experiencing that makes you think you need to use Reset? Be specific.

You will need to reinstall your Extensions and Appearance items (themes/personas). Read the following thoroughly including the links in the article for a full understanding. A copy of your old profile will be saved to your desktop as "Old Firefox Data". There is a link in the article providing information on how to transfer data files (not the whole folder) from that desktop copy to your new profile. Carefully copy a few at a time and test to be sure that your problem is not re-occurring.

この投稿は TheOldFox により に変更されました

more options

Yes, you will have to reinstall all extensions if you reset Firefox.

If you reset Firefox then a new profile is created and some of your data (bookmarks, passwords, cookies, form data) is automatically imported and your current profile will be moved to the desktop (Old Firefox Data).

You can recover more data from the old profile (be cautious with doing that).


Did you try Safe mode to see if that has any effect?

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do not click the Reset button on the Safe mode start window or otherwise make changes.

You can also try to clear some personal data like the history if you currently have large website history and the cache.

Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.


If it is a big difference compared to other browsers then also check your security software.