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.

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

addons

  • 3 majibu
  • 1 ana tatizo hili
  • 7 views
  • Last reply by Pj

more options

Just now I have found out that 3 (all 3) of my add-ons were disabled by Firefox saying they can't be verified! These add-ons I have been using for years and are by the original vendor. AVAST, ROBOFORM and also Adblock Plus. I have tried getting them from the Firefox extension search and when I got to install them (tried several times) I am told to check my connection. WHAT? Funny if I have no connection I am able to type this and browse the net. I want these add-ons. How do I get them back and why would trusted add-ons from the original source NOT be verified and trusted all of a sudden? Myself and others that I do computer help for that use these add-ons want them back or will uninstall Firefox. We paid for the Robo-Form one!

Just now I have found out that 3 (all 3) of my add-ons were disabled by Firefox saying they can't be verified! These add-ons I have been using for years and are by the original vendor. AVAST, ROBOFORM and also Adblock Plus. I have tried getting them from the Firefox extension search and when I got to install them (tried several times) I am told to check my connection. WHAT? Funny if I have no connection I am able to type this and browse the net. I want these add-ons. How do I get them back and why would trusted add-ons from the original source NOT be verified and trusted all of a sudden? Myself and others that I do computer help for that use these add-ons want them back or will uninstall Firefox. We paid for the Robo-Form one!

All Replies (3)

more options

There's nothing wrong with those add-ons. A critical Add-on-related certificate expired (which obviously should not happen). As a result, all verifications for that certificate are failing.

The Add-ons team is working on a fix for this. Official updates are expected to be posted here:

https://discourse.mozilla.org/t/certificate-issue-causing-add-ons-to-be-disabled-or-fail-to-install/39047

Currently, the only workaround is to set your system clock back (for example, if your date is May 3, set to May 2; if your date is May 4, set to May 3). You might have to reinstall extensions after that, or maybe Firefox will detect the difference at your next shut down/restart. Changing the date may have other consequences, so I understand this option isn't ideal.

more options

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.

more options

tbraybrook said

There was a Bug-A-Boo with a Certificate Expiration Date dealing with the Add-ons. There's a new FF Version with the main Fix, 66.0.4.

Mozilla Blog Post Update:
A Firefox release has been pushed — version 66.0.4 on Desktop and Android, and version 60.6.2 for ESR. This release repairs the certificate chain to re-enable web extensions, themes, search engines, and language packs that had been disabled (Bug 1549061).
There are remaining issues that we are actively working to resolve, but we wanted to get this fix out before Monday to lessen the impact of disabled add-ons before the start of the week. More information about the remaining issues can be found by clicking on the links to the release notes above.
(May 5, 16:25 EDT)


~Pj