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Mozilla Product

Firefox ESR

Firefox ESR is a Mozilla product filed under Browsers. Lifecycle: versioned, 13 versions listed, latest 153 ESR (21 Jul 2026).

Releases and Lifecycle

All Mozilla products

Release and support dates as published by Mozilla; dates within the next 12 months are highlighted, past dates dimmed. Retrieved 2026-10-14.

Firefox ESR 13 versions

First release of each ESR line; the release calendar shows ESR dot releases but the public pages checked state no end-of-support dates.

VersionReleasedSource
153 ESR[1]
140 ESR[1]
128 ESR[1]
115 ESR[1]
102 ESR[1]
91 ESR[1]
78 ESR[1]
68 ESR[1]
60 ESR[1]
52 ESR[1]
38 ESR[1]
31 ESR[1]
24 ESR[1]
Sources 1
  1. Mozilla product details: Firefox releases retrieved 2026-10-14

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