Mozilla Resolves Firefox Add-On Outage Caused by Expired Certificate
Mozilla releases permanent fixes for a widespread Firefox issue that disables add-ons due to an expired security certificate. Users are encouraged to update their browsers or install specific extensions to restore functionality.
Mozilla resolves a widespread issue that causes add-ons and themes to fail or become disabled in Firefox. The problem stems from an expired security certificate that unexpectedly prevents extensions from loading properly. To address this, the company releases permanent updates, including Firefox 66.0.5 for Desktop and Android, alongside Firefox ESR 60.6.3.
Users who previously receive a temporary fix through the Firefox Studies system are now urged to update to the latest version to apply the permanent solution. Once users install the updated browser, they safely disable the Studies feature if they no longer wish to participate. Mozilla also confirms that all telemetry data collected during the initial fix is completely deleted to protect user privacy.
For individuals who cannot update to the newest browser versions, Mozilla provides alternative solutions through user-installable extensions. These specific extensions resolve the certificate issue for older Firefox releases ranging from version 47 up to version 65, ensuring that users on legacy systems regain access to their disabled add-ons without needing to enable Studies.