Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox for Android
Release Notes

Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

Version 143.0, first offered to Release channel users on September 16, 2025

Thanks for using Firefox! Have feedback or suggestions? We'd love to hear from you at Android Support

Smarter downloads: manage files easily with real-time tracking and quick controls
More secure browsing: enable DNS over HTTPS in settings for added protection
Enhanced audio: enjoy higher-quality sound with xHE-AAC technology

Get the most recent version