Mozilla is warning Firefox users to update their browsers to the latest version to avoid facing disruption and security risks caused by the upcoming expiration of one of the company's root certificates. "On 14 March a root certificate (the resource used to prove an add-on was approved by Mozilla) will expire, meaning Firefox users on versions older than 128 (or ESR 115) will not be able to use their add-ons," warns a Mozilla blog post. Mozilla says that users relying on older versions of Firefox may continue using their browsers after the expiration of the certificate if they accept the security risks, but the software's performance and functionality may be severely impacted. Mozilla has also set up a support thread for users who encounter problems or need help updating their Firefox browsers. Users need to update their browsers to Firefox 128 (released in July 2024) or later and ESR 115.13 or later for 'Extended Support Release' (ESR) users. Users of Firefox-based browsers like Tor, LibreWolf, and Waterfox should also ensure they're running a version based on Firefox 128 and later. The Mozilla certificate is set to expire this Friday, March 14, 2025, and was used to sign content, including add-ons for various Mozilla projects and Firefox itself. Users are recommended to check and confirm they're running Firefox version 128 and later via Menu > Help > About Firefox. It is noted that the problem impacts Firefox on all platforms, including Windows, Android, Linux, and macOS, except for iOS, where there's an independent root certificate management system.
This Cyber News was published on www.bleepingcomputer.com. Publication date: Wed, 12 Mar 2025 15:05:27 +0000