Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

why can't I download themes from addons.mozilla.org? it always says the download failed.

  • 2 àwọn èsì
  • 1 ní ìṣòro yìí
  • 10 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ Chris Ilias

kitramos
kitramos
more options

so ever since they decided to block the theme I Was using and a whole bunch of other useful add ons. I went to the main theme site and looked for a new theme. but every one i tried it said download failed. I can download fine from other sites. I need some help.

so ever since they decided to block the theme I Was using and a whole bunch of other useful add ons. I went to the main theme site and looked for a new theme. but every one i tried it said download failed. I can download fine from other sites. I need some help.
Ìsopọ̀ yíyà aṣàfihàn

Ọ̀nà àbáyọ tí a yàn

Mozilla has rolled-out a fix for this. The fix will be automatically applied in the background within the next few hours, you don’t need to take active steps.

In order to be able to provide this fix on short notice, they are using the Studies system. You can check if you have studies enabled

  1. Go to [=] > Options > Privacy & Security.
  2. Make sure Allow Firefox to install and run studies is check marked.

I you had it disabled, you can disable studies again after your add-ons have been re-enabled.

They are working on a general fix that doesn't need to rely on this and will keep you updated.

Ka ìdáhùn ni ìṣètò kíkà 👍 0

All Replies (2)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Sorry, the Add-ons team is working on a fix for this. It is not specific to particular themes and extensions, it looks like a certificate used to sign many popular add-ons expired. The verification process checks that certificate, and anything that doesn't pass is blocked.

I don't know how soon re-signed versions of those add-ons will become available, or whether another workaround will be discovered. We are all hoping to learn more soon.

Chris Ilias
Chris Ilias
  • Moderator
more options

Ọ̀nà àbáyọ Tí a Yàn

Mozilla has rolled-out a fix for this. The fix will be automatically applied in the background within the next few hours, you don’t need to take active steps.

In order to be able to provide this fix on short notice, they are using the Studies system. You can check if you have studies enabled

  1. Go to [=] > Options > Privacy & Security.
  2. Make sure Allow Firefox to install and run studies is check marked.

I you had it disabled, you can disable studies again after your add-ons have been re-enabled.

They are working on a general fix that doesn't need to rely on this and will keep you updated.