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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Down Grade

cor-el 已回复
jwedge1726

I have an older piece of equipment that I need to communicate with it and the 232 interface will only work through Firefox. I was told I can downgrade the current version to 3.0, which is what I need, but I cannot find out how. HELP

Jeff

I have an older piece of equipment that I need to communicate with it and the 232 interface will only work through Firefox. I was told I can downgrade the current version to 3.0, which is what I need, but I cannot find out how. HELP Jeff

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jwedge1726 said

I have an older piece of equipment that I need to communicate with it and the 232 interface will only work through Firefox. I was told I can downgrade the current version to 3.0, which is what I need, but I cannot find out how. HELP Jeff

Firefox 3.0 is ancient as it was released way back on June 17, 2008 https://www.mozilla.org/firefox/releases/

If this is a Windows system then perhaps your best option is to use the portable Firefox 3.0. The portable Firefox builds are self contained as they can run off hard drive or even completely off a usb flash drive. They will not interfere with any of your current Firefox installs you may have.

https://sourceforge.net/projects/portableapps/files/Mozilla%20Firefox,%20Portable%20Ed./Mozilla%20Firefox,%20Portable%20Edition%203.0/

The English locale is Firefox_Portable_3.0_en-us.paf.exe

由James于修改