FF

Mozilla Firefox 159.0

Get release alerts
158.0.1โ†’159.0
๐Ÿ“… October 28, 2026๐Ÿ—‚ Browsers๐Ÿ“ฆ Mozilla Firefox โ†—๐Ÿ“œ Full changelog โ†—

What's new

More from Mozilla Firefox
Mozilla Firefox 158.0.1Oct 21, 2026
Mozilla Firefox 158.0Oct 14, 2026
Mozilla Firefox 157.0.1Oct 7, 2026
Mozilla Firefox 157.0Sep 30, 2026
Mozilla Firefox 156.0.1Sep 23, 2026
Latest in Browsers
Google Chrome: Google Chrome 157.0.8103.27Oct 29, 2026
Safari: Safari 27.2Oct 27, 2026
Google Chrome: Google Chrome 157.0.8103.15Oct 23, 2026
Google Chrome: Google Chrome 156.0.8078.48Oct 21, 2026
Google Chrome: Google Chrome 156.0.8078.36Oct 16, 2026

๐Ÿ’ฌ Comments (0)

Have you installed this Mozilla Firefox update?

Share any installation issues, compatibility changes, or fixes you noticed.