Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Mozilla サポートの検索

サポート詐欺に注意してください。 私たちはあなたに通話やショートメッセージの送信、個人情報の共有を求めることはありません。疑わしい行為を見つけたら「迷惑行為を報告」からご報告ください。

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。

Some Websites refuse to accept my Firefox as browser

  • 2 件の返信
  • 1 人がこの問題に困っています
  • 45 回表示
  • 最後の返信者: Hartmut Ripken
  • アーカイブに保管済み

Hi, Some official/formal Websites refuse to accept my Firefox as an acceptable browser. I am using Firefox browser Ver. 136.0.2 (64-bit). According to you (in the browser) and to internet information it is the latest/the current version. An example of such a refusal from a website is from the DB/Deutsche Bahn official website, dated 24-03-2025: See uploaded image. As with other websites, they recommend other browsers or "the current version" of Firefox (even though I already have it installed). I then switch to Chrome and continue working without further problems. I would like to use Firefox though, but apparently cannot. I need advice. What am I doing wrong? Why is my current version of Firefox described as outdated? Thank you.

Email: ripken@t-online.de

Hi, Some official/formal Websites refuse to accept my Firefox as an acceptable browser. I am using Firefox browser Ver. 136.0.2 (64-bit). According to you (in the browser) and to internet information it is the latest/the current version. An example of such a refusal from a website is from the DB/Deutsche Bahn official website, dated 24-03-2025: See uploaded image. As with other websites, they recommend other browsers or "the current version" of Firefox (even though I already have it installed). I then switch to Chrome and continue working without further problems. I would like to use Firefox though, but apparently cannot. I need advice. What am I doing wrong? Why is my current version of Firefox described as outdated? Thank you. Email: ripken@t-online.de
添付されたスクリーンショット

すべての返信 (2)

Hello,

I've tried the Deutsche Bahn website and it works for me.

Can you try in a Private window to see if the issue is there?

Thank you for your post! I have observed another negative fact: Some websites open new windows when in dialogue, Firefox often does not (without giving me an error message), it just sits there and does nothing; in Chrome the dialogue via new windows is readily doable.

I have now tried a private window, and the log-in to DB works well, I do not get the error message that I copied as attachment to my first post. 

However, using a private window in general does not seem to work for me, the functionalities are severely limited, to the extent that several websites are not usable. If you can deduce from my descriptions a remedy for my basic problem (Firefox browser not accepted, other browsers or "the current version" of Firefox are recommended) I would be happy, otherwise I will have to use Chrome. Thank you for your help! The Aeronomer