Firefox add-ons disabled en masse after Mozilla certificate issue

Firefox users report having add-ons disabled, being unable to re-activate or (re)-install extensions.

Add-ons disabled or failing to install in Firefox

Mozilla Halts Firefox 65 Rollout Due to Insecure Certificate Errors

Expired certificate broke all Firefox add-ons

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Firefox Addons Being Disabled Due to an Expired Certificate

Firefox - Wikipedia

certificate - Hot to make firefox ignore insecure connection

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Armagadd-on redux: Certificate expiration caused Firefox to

How to fix add-ons disabled in Firefox