Latest Mozilla Firefox version: 154.0
The current verified stable version of Mozilla Firefox is 154.0.
154.0155.0b3Release date: 2026-08-18. Source verified: 2026-08-23. Source: Mozilla product details.
Free and open source web browser with privacy protection.
Open the official Mozilla Firefox downloadSource-backed version details
Mozilla product details
Source verified: 2026-08-23.
Release date: 2026-08-18.
Web Browser
Vendor-provided source
Publisher API record
Recently checked — Checked 15 days ago; the catalog review window is 45 days.
Stable channel
Not published
Not published
Firefox also offers Extended Support Release (ESR). Choose ESR when the publisher’s enterprise support cadence matters more than the newest stable features.
Read Firefox release channels ↗Where can you install it?
What-Version labels who publishes or maintains each route. Community routes are useful, but they are not presented as vendor downloads.
Version evidence and catalogued download links are anchored to the publisher-owned source.
Open publisher source ↗