Linux Mint users, take note! A critical update is coming for Linux Mint users who rely on Firefox browser and you should act now to avoid potential issues. On March 14, 2025, a root certificate used by Firefox will expire. This expiration could cause significant problems for users running Firefox version 128 or lower. All Linux Mint users are advised to update their systems immediately.
What Happens if You Don't Update?
When the root certificate expires, older versions of Firefox (128 and below) may face issues related to:
- Configuration: Settings may not work as expected.
- Add-ons: Your favorite browser extensions could stop functioning.
- Signed Content: Secure content may not load properly.
- DRM-Protected Media Playback: Streaming services like Netflix or Spotify might not work.
These problems can disrupt your browsing experience, so I strongly recommend you to update Firefox as soon as possible.
Update Linux Mint Today
To avoid these issues, Linux Mint users should ensure their system is up to date. To update your Linux Mint system, simply do the following:
- Open your Update Manager.
- Click Refresh to check for the latest updates.
- Apply all available updates.
This simple step will ensure you’re running Firefox 135.0.1, the version that resolves these problems.
The latest version, Firefox 135.0.1, is now available for all supported Linux Mint versions. This update ensures security and stability while preventing issues caused by the expiring certificate.
Emergency Update for Older Linux Mint Versions
If you’re using an older, discontinued version of Linux Mint (such as versions 19, 19.1, 19.2, 19.3, or LMDE 4 and 5), you’re not left out. Firefox 135.0.1 has been sent as an emergency update to these versions.
However, if you’re running Linux Mint 20 or older, or LMDE 5 or older, it’s highly recommended to upgrade or reinstall Linux Mint to a supported version for better security and performance.
Need Help Upgrading?
If you’re unsure how to upgrade your Linux Mint system, you can find detailed instructions here: Linux Mint Upgrade Guide.
Don’t wait until March 14, 2025, to update your Firefox browser. Take a few minutes today to check your system and apply the necessary updates.
This update isn’t just about avoiding technical glitches—it’s also about security.
Keeping your software up to date is one of the best ways to protect your system from vulnerabilities. In this case, updating Firefox will help you avoid regressions and ensure a smooth, secure browsing experience.
