Firefox Ends Support for Windows 7, 8, and 8.1

Mozilla Firefox has officially ended support for Windows 7, 8, and 8.1 with the release of version 115. This change affects users who have not upgraded to newer operating systems, as Firefox will no longer provide updates or security patches for these older platforms.

Extended Support Release Details

Version 115 of Firefox is part of the Extended Support Release (ESR) channel, which focuses on delivering essential security patches while limiting major updates. Mozilla has committed to maintaining ESR updates for this version until the end of February 2026. This decision follows previous extensions of support, as Mozilla initially planned to discontinue support earlier but adjusted timelines twice before finalizing the ESR end date.

Upgrade Recommendations

Mozilla advises users still operating on Windows 7, 8, or 8.1 to upgrade to Windows 10 or 11. Alternatively, switching to Linux is recommended to ensure continued access to Firefox updates and security fixes. This move aligns with other major browsers that ceased support for Windows 7 some time ago, reflecting a broader industry shift towards newer operating systems.

Update: 23 Jun 2026