If you're a Firefox user, there's an important update you should know about. Mozilla is reminding users to upgrade to the latest version of Firefox before March 14, 2025, to avoid major security and usability issues. An essential root certificate for the browser will expire on that date, and without an update, older versions of Firefox could start experiencing significant problems.
What Happens if You Don’t Update?
Failing to update to Firefox 128 (or ESR 115.13 for extended support release users) means you could lose access to certain browser features, especially ones that rely on remote functionality. Here are some of the issues that may occur:
- Add-ons Stop Working: Many of the add-ons you rely on daily could become disabled. Add-ons are popular for enhancing the Firefox experience, from ad blockers to security tools, but these rely on content verification processes that need a valid root certificate.
- Streaming Issues: If you enjoy streaming DRM-protected media (content protected by digital rights management), you may find these no longer work if Firefox isn’t updated.
- Security and Content Issues: Other essential browser functions, such as content verification, may also fail. This could lead to security problems, leaving the browser vulnerable to malicious content.
While Mozilla’s warnings apply to Firefox versions on Android, Windows, macOS, and Linux, iPhone and iPad users won’t be affected by this issue. Apple devices don’t rely on the same root certificate structure, so Firefox users on iOS are in the clear.
Why is Updating So Important?
A root certificate is a digital security component that tells your browser which websites and applications are safe. Without this certificate, Firefox can’t verify that content is trusted, making the browser unable to load certain content or add-ons. Mozilla has already included a new root certificate in the latest versions of Firefox and other Mozilla products to ensure continuous functionality beyond March 2025.
Mozilla aims to prevent a repeat of the confusion caused in 2019 when a similar root certificate expired. Back then, many Firefox users encountered sudden issues with add-ons, leading to a lot of frustration. This time, Mozilla hopes that advance warnings and updates will keep everyone prepared and avoid similar issues.
How to Stay Protected
Mozilla advises all users to update to the latest version of Firefox (at least version 128 or ESR 115.13). Mozilla released these versions in July 2024, and they include security improvements and performance boosts. The most recent update as of now is Firefox 131.0.3, so checking for updates regularly is a good habit.
With this update, you'll enjoy a smoother experience on Firefox without interruptions. Take a moment to update on every device you use to ensure your browser remains secure and reliable—whether you’re on Android, Windows, macOS, or Linux.