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

Avatar for Username

Search Support

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.

Learn More

This thread was archived. Please ask a new question if you need help.

Firefox can't install .zip add-ons even after setting xpinstall.signatures.required to false

  • 1 reply
  • 1 has this problem
  • 103 views
  • Last reply by TyDraniu
  • Archived

Mei Yuri
Mei Yuri

I've been trying to install an add-on that is in the .zip format. I set xpinstall.signatures.required to false and restarted the browser, yet Firefox keeps telling me the add-on cannot be installed because it's not verified. Is there a way to change this?

I've been trying to install an add-on that is in the .zip format. I set xpinstall.signatures.required to false and restarted the browser, yet Firefox keeps telling me the add-on cannot be installed because it's not verified. Is there a way to change this?

All Replies (1)

TyDraniu
TyDraniu
  • Top 10 Contributor

This option works only in dev builds. You can install Nightly to try it out.