Firefox disabled all add-ons because a certificate expired (updated) - Engadget

[RetromanIE]

<a href="https://www.engadget.com/2019/05/03/firefox-extension-add-on-cert/" target="_blank">Firefox disabled all add-ons because a certificate expired (updated)</a>&nbsp;&nbsp;<font color="#6f6f6f">Engadget</font><p>Many Firefox users around the world are browsing without their usual set of extensions after they suddenly stopped working earlier this evening. The event occur ...</p>

More... (https://www.engadget.com/2019/05/03/firefox-extension-add-on-cert/)