Firefox 153 Enters Beta Testing as the Next Extended Support Release Series
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Firefox 153 Enters Beta Testing as the Next Extended Support Release Series

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MN
Marcus Nestor
Jul 27, 2026

The big news with Firefox 153 is that it will be the next Firefox ESR (Extended Support Release) series, supported for 15 months with regular updates that coincide with new Firefox releases. Firefox 153 ESR will join the Firefox 140 ESR and Firefox 115 ESR releases, the latter being retired in September 2026.
MN

Marcus Nestor

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