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.

Ad Blocker Plus Isn't Working, how can I block ads

  • 1 resposta
  • 4 have this problem
  • 1 view
  • Last reply by philipp

chezphyl
chezphyl
more options

Message (in red) says it's been disabled (unsigned add-on). I performed the following instructions to be able to use unsigned add-ons, but that didn't correct the problem. 1) typed: about:config 2) searched for: xpinstall.signatures.required 3) Double clicked the preference, setting it to "false" Every ad blocker add-on, fails. 1) Why didn't changing the preference work? 2) What signed add-on is available to use? Thank you for any assistance you can provide.

Message (in red) says it's been disabled (unsigned add-on). I performed the following instructions to be able to use unsigned add-ons, but that didn't correct the problem. 1) typed: about:config 2) searched for: xpinstall.signatures.required 3) Double clicked the preference, setting it to "false" Every ad blocker add-on, fails. 1) Why didn't changing the preference work? 2) What signed add-on is available to use? Thank you for any assistance you can provide.

Chosen solution

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

mozilla just released the official update to v66.0.4 which should mitigate this problem. you can manually trigger it by going to the firefox menu ≡ > help > about firefox panel.

for more details, please see: Add-ons disabled or fail to install on Firefox

Ler a resposta no contexto 👍 1

All Replies (1)

philipp
philipp
  • Moderator
more options

Chosen Solution

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

mozilla just released the official update to v66.0.4 which should mitigate this problem. you can manually trigger it by going to the firefox menu ≡ > help > about firefox panel.

for more details, please see: Add-ons disabled or fail to install on Firefox