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.

Avatar for Username

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信，及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

详细了解
话题已存档。 如果需要帮助请提出新问题。
已存档

FF is not listed as a choice under "Default Apps" after reinstalling

Firefox 安装与更新
cwroten 已回复
cwroten
cwroten

When I uninstall FF and then reinstall the latest FF 63.0 on the latest Windows 10 Pro, I notice it is added to Control Panel -> Apps -> Apps & Features, but it is NOT listed as a choice under Apps-> Default Apps -> Web Browser or under Default Apps -> Set defaults by app or Default Apps -> Choose default apps by protocol or Default Apps -> Choose default apps by file type. As a result, I am unable to set FF as the default browser.

When I uninstall FF and then reinstall the latest FF 63.0 on the latest Windows 10 Pro, I notice it is added to Control Panel -> Apps -> Apps & Features, but it is NOT listed as a choice under Apps-> Default Apps -> Web Browser or under Default Apps -> Set defaults by app or Default Apps -> Choose default apps by protocol or Default Apps -> Choose default apps by file type. As a result, I am unable to set FF as the default browser.

所有回复 (2)

WestEnd
WestEnd

Did you remove the Mozilla folder as well? Also did you restart your computer after the uninstall?

cwroten
cwroten 提问者

No, I did not remove any remaining folder. Which one(s) are you referring to? The one under Program Files or the folder containing my preferences, bookmarks, cache, cookies, etc?

No, I did not restart my laptop immediately after the install. It was not needed but the laptop has been restarted since FF was installed.