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Firefox 52.9.0esr (32 bit) (WinXP SP-3) wants to disable my add-ons

  • 3 replies
  • 1 has this problem
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  • Last reply by phrab7

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All of a sudden, I get a message that one or more installed add-ons can't be verified & has been disabled. However, they seem to still work. But I get the message shown below every time I launch Firefox. This just started happening last week.

I've shown a picture of some of the "disabled" add-ons. However, I know for sure that Roboform is still working.

How can I get rid of these messages? Thank you in advance!

All of a sudden, I get a message that one or more installed add-ons can't be verified & has been disabled. However, they seem to still work. But I get the message shown below every time I launch Firefox. This just started happening last week. I've shown a picture of some of the "disabled" add-ons. However, I know for sure that Roboform is still working. How can I get rid of these messages? Thank you in advance!
Attached screenshots

Chosen solution

There has been an unfortunate issue with an intermediate certificate that had expired recently and this certificate was used to verify the signatures of extensions hosted on the Add-ons website. This expired certificate caused Firefox to distrust and disable all installed extensions. There have been Firefox updates released to address this issue (66.0.4 and 60.6.2 ESR),see:

  • Help -> About Firefox

Users of older (unsupported) Firefox versions will have to install this new intermediate certificate manually via other ways for now.

See also Mozilla Add-ons on Twitter:

Read this answer in context 👍 1

All Replies (3)

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Chosen Solution

There has been an unfortunate issue with an intermediate certificate that had expired recently and this certificate was used to verify the signatures of extensions hosted on the Add-ons website. This expired certificate caused Firefox to distrust and disable all installed extensions. There have been Firefox updates released to address this issue (66.0.4 and 60.6.2 ESR),see:

  • Help -> About Firefox

Users of older (unsupported) Firefox versions will have to install this new intermediate certificate manually via other ways for now.

See also Mozilla Add-ons on Twitter:

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It looks that there is a system Add-on planned for older Firefox version that do not support the hotfix.

  • Bug 1549604 - ship legacy system add-ons to remediate armagadd-on 2.0

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html
)

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cor-el said

There has been an unfortunate issue with an intermediate certificate that had expired recently and this certificate was used to verify the signatures of extensions hosted on the Add-ons website. This expired certificate caused Firefox to distrust and disable all installed extensions. There have been Firefox updates released to address this issue (66.0.4 and 60.6.2 ESR),see:
  • Help -> About Firefox
Users of older (unsupported) Firefox versions will have to install this new intermediate certificate manually via other ways for now. See also Mozilla Add-ons on Twitter:

Thank you @cor-el!! The answers at this link worked! I appreciate your time & expertise!