Mozilla is warning all Firefox users to update their browsers before March 14, 2025, to prevent major disruptions caused by an expiring root certificate. According to a Mozilla support document, failure to update could result in disabled add-ons, broken DRM content playback, and increased security risks.
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Why You Need to Update
On March 14, 2025, a root certificate that Mozilla uses to verify signed content and add-ons will expire. If users don’t update their browsers to Firefox 128 or higher (or ESR 115.13+ for extended support users), they could face:
- Disabled add-ons and extensions
- Non-functioning DRM-protected media, including streaming services
- Security vulnerabilities, making it easier for attackers to compromise user data
- Broken content verification systems
This issue affects Firefox users on Android, Windows, Linux, and macOS. However, iOS users are not impacted, since Apple uses a separate root certificate management system.
Additionally, users of Firefox-based browsers like Waterfox, Tor, and LibreWolf are also advised to update to avoid issues.
How to Check and Update
To ensure you’re using the latest Firefox 128 version:
- Open Firefox
- Go to Menu > Help > About Firefox
- If an update is available, install it immediately
Mozilla strongly recommends users update before the deadline to avoid security vulnerabilities and disruptions in browsing functionality.