Package
firefox-esr-140
Component
firefox-esr-140
Latest update
Fixed version
140.17.0-r2
Build, ship, and run secure software with minimal, hardened container images — rebuilt from source daily and guarded under our industry-leading remediation SLA.
Start for freeStatus
Fixed version
140.17.0-r2Status
Impact
Firefox ESR 140 reached end-of-life upstream on 2026-09-29 with its final release, 140.17.0, and Mozilla no longer publishes security updates for the 140 ESR line. Users should migrate to firefox-esr-153, the currently supported Firefox ESR line.