Windows 10 已于2025年10月14日停止支持。如果您正在使用 Windows 10,参见 这篇文章

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

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Attachments in latest version of Thunderbird (91.2.0)

sfhowes 已回复
stefan24

Whenever I click on a PDF attachment that is in an email, the pdf opens in a tab instead of my default viewer. How do I go back to using the default viewer?

Whenever I click on a PDF attachment that is in an email, the pdf opens in a tab instead of my default viewer. How do I go back to using the default viewer?

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Preferences/General/Files & Attachments, click the Action drop-down and choose the default or any other app (see picture).