Firefox 154 — lifecycle date eolFrom is now 2026-09-01
For Firefox 154, product is firefox; field changed is eolFrom; new value is 2026-09-01; detected is 2026-09-02, recorded from its source on 2026-09-16; source re-checked 2026-10-26.
- Product
- firefox
- Product label
- Firefox
- Release cycle
- 154 verified
- Field changed
- eolFrom verified
- New value
- 2026-09-01 verified
- Detected
- 2026-09-02 our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
{"name":"154","codename":null,"label":"154","releaseDate":"2026-08-18","isLts":false,"ltsFrom":null,"isEol":true,"eolFrom":"2026-09-01"
— endoflife.date, retrieved 2026-09-16
Source
- endoflife.datehttps://endoflife.date/api/v1/products/firefox
This one changes, and we watch it.Software end-of-life date changes — which dates moved and what they were before is re-read on a schedule and every change is dated. Subscribe: Atom feed · JSON · what has changed so far.