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

Posted

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

Additional System Details

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape 11.0.8
  • Citrix Online App Detector Plugin
  • Foxit Reader Plug-In For Firefox and Netscape
  • Google Update
  • DRM Netscape Network Object
  • DRM Store Netscape Plugin
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Shockwave Flash 28.0 r0
  • 5.1.30514.0
  • Npdsplay dll
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • iTunes Detector Plug-in

Application

  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:52.0) Gecko/20100101 Firefox/52.0

More Information

cor-el
  • Top 10 Contributor
  • Moderator
17541 solutions 158619 answers

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:

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. *[/questions/1258208] plugins could not be verified firefox esr 52 *[/questions/1258275] How do I re-enable the add-ons WITHOUT being forced to upgrade See also Mozilla Add-ons on Twitter: *https://twitter.com/mozamo/
cor-el
  • Top 10 Contributor
  • Moderator
17541 solutions 158619 answers

Helpful Reply

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
)

It looks that there is a system Add-on planned for older Firefox version that do not support the hotfix. *[https://bugzilla.mozilla.org/show_bug.cgi?id=1549604 Bug 1549604] - ship legacy system add-ons to remediate armagadd-on 2.0 (<i>please do not comment in bug reports<br>https://bugzilla.mozilla.org/page.cgi?id=etiquette.html</i>)

Question owner

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!

''cor-el [[#answer-1220207|said]]'' <blockquote> 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. *[/questions/1258208] plugins could not be verified firefox esr 52 *[/questions/1258275] How do I re-enable the add-ons WITHOUT being forced to upgrade See also Mozilla Add-ons on Twitter: *https://twitter.com/mozamo/ </blockquote> Thank you @cor-el!! The answers at [https://support.mozilla.org/questions/1258208 this link] worked! I appreciate your time & expertise!