Quote:There is some good news for Firefox ESR 115 users on older operating systems. Mozilla has extended support for the version until March 2026.

Note: ESR refers to Extended Support Release.

Mozilla released Firefox 115 in July 2023. Then, it had announced that Firefox 115.0 ESR would be the last version that supports Windows 7, Windows 8, Windows 8.1, as well as Apple macOS 10.12, 10.13, and 10.14. This version was originally intended to be supported until September 2024.

In September 2024, Firefox ESR 128 replaced 115 as the new code base for current operating systems. However, Mozilla extended Firefox 115 ESR support for users on Windows 7, 8, 8.1 until April 1, 2025. But in February 2025, Mozilla once again extended support for Firefox ESR 115 branch until September 2025.

You guessed it, the same thing has happened, another 6-month extension. Redditors have spotted a note on Firefox's release calendar says that Mozilla has decided to extend support for Firefox ESR 115 only on Windows 7, 8, 8.1 and macOS 10.12 to 10.14 up to March 2026. Mozilla will re-evaluate the situation in February 2026, to decide whether to end support for Firefox 115 ESR.

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