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

Cari Bantuan

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Pelajari Lebih Lanjut

I cannot install any add on. Download error -228

  • 5 balas
  • 143 memiliki masalah ini
  • 158 kunjungan
  • Balasan terakhir oleh Mystery100
  • Diarsipkan

When I try to install an Add-On, I get the following message:

Firefox could not install the file at

_____________________________

because: Download error -228

This happens with ANY Add-On download. Theme or Add-On.

When I try to install an Add-On, I get the following message: Firefox could not install the file at _____________________________ because: Download error -228 This happens with ANY Add-On download. Theme or Add-On.

Semua Balasan (5)

Diperbarui oleh TonyE pada

@TonyE

I've visited those links before, but neither of them help, my cache is 50MB, (as I have not messed with the default setting). Halp?

See if this works. Try downloading the .xpi file for the add-on, to do that right-click on the installation link and choose "Save link as". Then in the Firefox menus choose "File > Open File" and open the .xpi file that you downloaded. That should install the add-on.

Well I can now download some addons, but the ones I cannot, I try this fix above and when I choose File > Open, it says invalid/corrupt addon.

Well I can now download some addons, but the ones I cannot, I try this fix above and when I choose File > Open, it says invalid/corrupt addon.