Mozilla Firefox version history
63 recorded releases. Download the current version from the official download page.
| Version | Release date | Notes |
|---|---|---|
| 159.0 | Oct 27, 2026 | |
| 157.0.1 | Oct 6, 2026 | |
| 158.0 | – | |
| 158.0.1 | – | |
| 139.0 | – | |
| 139.0.1 | – | |
| 139.0.4 | – | |
| 140.0 | – | |
| 140.0.1 | – | |
| 140.0.2 | – | |
| 140.0.4 | – | |
| 141.0 | – | |
| 141.0.2 | – | |
| 141.0.3 | – | |
| 142.0 | – | |
| 142.0.1 | – | |
| 143.0 | – | |
| 143.0.1 | – | |
| 143.0.3 | – | |
| 143.0.4 | – | |
| 144.0 | – | |
| 144.0.2 | – | |
| 145.0 | – | |
| 145.0.1 | – | |
| 145.0.2 | – | |
| 146.0 | – | |
| 146.0.1 | – | |
| 147.0 | – | |
| 147.0.1 | – | |
| 147.0.2 | – | |
| 147.0.3 | – | |
| 147.0.4 | – | |
| 148.0 | – | |
| 148.0.2 | – | |
| 149.0 | – | |
| 149.0.2 | – | |
| 150.0 | – | |
| 150.0.1 | – | |
| 150.0.2 | – | |
| 150.0.3 | – | |
| 151.0 | – | |
| 151.0.1 | – | |
| 151.0.2 | – | |
| 151.0.3 | – | |
| 151.0.4 | – | |
| 152.0 | – | |
| 152.0.1 | – | |
| 152.0.2 | – | |
| 152.0.3 | – | |
| 152.0.4 | – | |
| 152.0.5 | – | |
| 152.0.6 | – | |
| 153.0 | – | |
| 153.0.1 | – | |
| 153.0.3 | – | |
| 153.0.4 | – | |
| 154.0 | – | |
| 154.0.1 | – | |
| 155.0 | – | |
| 155.0.1 | – | |
| 156.0 | – | |
| 156.0.1 | – | |
| 157.0 | – |