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Mozilla Firefox 153 ESR Is Now Available for Download, Here’s What’s New

Written By
MN
Marcus Nestor
Sep 3, 2026

Mozilla Firefox 153 is an Extended Support Release (ESR) that will receive updates for the next 15 months. It will accompany both Firefox 140 ESR, which will receive updates until September 2026, and the Firefox 115 ESR series. Once Firefox 140 ESR support ends, Firefox 153 ESR will take its place alongside Firefox 115 ESR.
MN

Marcus Nestor

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