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。

Suddenly a small tab shows up when I open the browser it's set to DAD: https://www.dance-all-day.com/#partners

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

more options

Today I noticed a small tab on the upper left screen beside a regular tab that has an x to close it. This small tab does not have an x. I have tried closing the browser and restarting but that does not work. Could this be a hacker? I ask because I have been having harassment problems from someone associated with this DAD website. I have attached a screen shot.

Today I noticed a small tab on the upper left screen beside a regular tab that has an x to close it. This small tab does not have an x. I have tried closing the browser and restarting but that does not work. Could this be a hacker? I ask because I have been having harassment problems from someone associated with this DAD website. I have attached a screen shot.
添付されたスクリーンショット

すべての返信 (1)

more options

You can check the home page setting:

  • Tools > Options > General > Startup: Home page

Firefox supports multiple home pages separated by '|' (pipe) symbols.


You can check for recently installed suspicious or unknown extensions.


Do a malware check with several malware scanning programs on the Windows computer. Please scan with all programs because each program detects different malware. All these programs have free versions.

Make sure that you update each program to get the latest version of their databases before doing a scan.

You can also do a check for a rootkit infection with TDSSKiller.

See also: