Mozilla Firefox 156.0.1
Release notes and official download link · released 22 September 2026
Download installer (opens publisher site in a new tab)
archive.mozilla.org · opens in a new tab
Download Mozilla Firefox 156.0.1
We don’t host files. Each link below goes to the publisher’s own site.
Windows
| Platform | Released | Download |
|---|---|---|
| Windows x64 | 22 September 2026 | Download installer (opens publisher site in a new tab) |
macOS
| Platform | Released | Download |
|---|---|---|
| macOS Universal | 22 September 2026 | Download installer (opens publisher site in a new tab) |
What’s in Mozilla Firefox 156.0.1
Update. Release notes: https://www.mozilla.org/en-US/firefox/156.0.1/releasenotes/
About this version
Mozilla Firefox 156.0.1 was released on 22 September 2026. It is number 3 from the newest of the 6 versions recorded for Mozilla Firefox, and is available for Windows x64, macOS Universal. Mozilla Firefox is Open source (MPL-2.0) software published by www.mozilla.org.