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

Avatar for Username

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。
アーカイブに保管済み

Firefox problems with Avast web shield on Mac

Firefox トラブルシューティング
AliceWyman replied
Sammyez
Sammyez

I have recently installed Firefox onto my iMac. I am now having problems accessing websites with an error message 'Your connection is not secure' I have Avast antivirus software installed. If I disable the Avast Web shield I am able to access websites but, not when the Avast webshield is on and protecting my pc.

Can you please advise?

Thanks.

I have recently installed Firefox onto my iMac. I am now having problems accessing websites with an error message 'Your connection is not secure' I have Avast antivirus software installed. If I disable the Avast Web shield I am able to access websites but, not when the Avast webshield is on and protecting my pc. Can you please advise? Thanks.

すべての返信 (2)

Sammyez
Sammyez 質問者

I posted this a few days ago but, still no reply?

AliceWyman
AliceWyman
  • モデレーター

This is copied from What do the security warning codes mean?

You may have enabled SSL scanning in your security software such as Avast, Bitdefender, ESET or Kaspersky. Try to disable this option. More details about this are available in the support article Troubleshoot security error codes on secure websites.

Hope that helps.