Firefox Extensions Disabled Globally Due to Expired Security Certificate
Mozilla scrambles to fix a widespread Firefox outage that disables all browser add-ons after an intermediate signing certificate unexpectedly expires. A background hotfix is now rolling out to restore functionality.
Firefox users around the world currently find themselves without their usual browser extensions after an expired security certificate causes all add-ons to suddenly stop working. The issue triggers precisely as the clock rolls over on Coordinated Universal Time, disabling both existing and newly installed add-ons across standard versions of the browser.
Mozilla's product lead confirms that the team identifies the expiration of the intermediate signing certificate as the root cause and works diligently to resolve the crisis. While standard users wait for an official solution, advanced users on Developer or Nightly builds temporarily bypass the issue by adjusting a specific setting in the "about:config" menu.
The team ultimately deploys a background hotfix that automatically restores add-on functionality without requiring any manual action from users. Security experts also warn Tor browser users to manually ensure their NoScript extension remains active during this outage to avoid browsing without vital privacy protections.