Browsers
Support dates for Firefox Extended Support Releases (ESR), the Firefox branches that organizations and older systems use for a year or more between major upgrades.
| Name | Status | Released | Security updates until | Extended support until |
|---|---|---|---|---|
| Firefox ESR 115 | Security fixes only | July 4, 2023 | March 2027 | |
| Firefox ESR 128 | End of life | July 9, 2024 | ||
| Firefox ESR 140 | Supported | June 24, 2025 | October 13, 2026 | |
| Firefox ESR 153 | Supported | July 21, 2026 |