Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Why have my addons become legacy addons and cannot be used?

  • 3 respostas
  • 1 has this problem
  • 13 views
  • Last reply by Paul

w00tnoway
w00tnoway
more options

they worked perfectly fine and the next day they didnt, please help me fix this! D: im using firefox 66.0.3 (64 bit)

the addons that stopped working are adblock plus, ghostery, dark mode, and another adblock

they worked perfectly fine and the next day they didnt, please help me fix this! D: im using firefox 66.0.3 (64 bit) the addons that stopped working are adblock plus, ghostery, dark mode, and another adblock

Chosen solution

hi w00tnoway, this is/was caused by an unforeseen technical problem unfortunately (an expired certificate used in the process of verifying addon signatures).

a fix for this is already being rolled out - for details, please see: Add-ons disabled or fail to install on Firefox

Ler a resposta no contexto 👍 1

All Replies (3)

philipp
philipp
  • Moderator
more options

Chosen Solution

hi w00tnoway, this is/was caused by an unforeseen technical problem unfortunately (an expired certificate used in the process of verifying addon signatures).

a fix for this is already being rolled out - for details, please see: Add-ons disabled or fail to install on Firefox

w00tnoway
w00tnoway Question owner
more options

thank you!

Paul
Paul
  • Top 25 Contributor
  • Moderator
more options

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.