Firefox to End 32-bit Linux Support in 2026
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By Invented Reporter | %%dateline_location%% – 2025/09/10 10:17:55
The Firefox web browser will cease support for 32-bit Linux operating systems in 2026, according to recent announcements. While this change won’t affect the majority of users, it’s a noteworthy progress for the Linux community.
the decision reflects the evolving landscape of operating system architectures and the increasing challenges of maintaining compatibility with older systems.
Impact on Users
“Mozilla‘s announcement says 32-bit Linux is not supported by many Linux distros.”
While a relatively small percentage of Firefox users are still on 32-bit Linux, the end of support will require them to migrate to a 64-bit system to continue receiving updates and security patches for Firefox.
According to the Firefox Public Data Report’s Hardware section, as of August 2025, only a small fraction of Firefox users are on 32-bit computers. The majority have already transitioned to 64-bit systems.
Reasons for the Change
Mozilla’s announcement says that supporting 32-bit Linux has become increasingly tough due to declining usage and limited support from Linux distributions. Maintaining a separate version of firefox for the platform requires additional resources and development effort.
Frequently Asked Questions
- what does this mean for 32-bit Linux users?
- users on 32-bit Linux systems will need to upgrade to a 64-bit operating system to continue using the latest versions of Firefox. they can also use Firefox ESR 140 until September 2026. Ubuntu’s download page offers 64-bit versions, and Fedora’s website also provides 64-bit downloads.
- Why is Firefox ending support for 32-bit Linux?
- Supporting 32-bit Linux requires additional resources and development effort, and the number of users on the platform is declining. Mozilla’s release notes often mention platform support changes, and Mozilla’s developer documentation provides details on supported architectures.
- What if I can’t upgrade to a 64-bit system?
- You can continue using Firefox ESR 140 until September 2026,which will continue to receive security updates. After that, you will need to upgrade to a 64-bit system or consider using an choice browser. Mozilla’s Enterprise page provides information on ESR releases, and The Chromium Projects page lists alternative browsers.
