In a notable update from Mozilla, the company has announced an extension of support for Firefox on older Windows operating systems, pushing the timeline for the Firefox Old ESR (Extended Support Release) to a new deadline of August 19, 2025. This decision comes after Mozilla’s initial announcement last September, which indicated support would conclude in March of this year.
Future of Firefox on Legacy Windows Versions
According to the revised release calendar, users of Windows 7, 8, and 8.1 can expect official support for Firefox to continue until September 2025. However, Mozilla has indicated that they will reassess this timeline in August, potentially altering the end-of-support date based on user needs and technological developments.
It is important to note that this extended support pertains specifically to Firefox 115 (Old ESR) and Firefox 128 (ESR). Both versions are scheduled for deprecation on September 16, 2025. Following this date, users will be required to upgrade to a newer version of Windows and transition to Firefox 140 ESR to maintain browser functionality.
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This information was originally reported by our sister publication, PC för Alla, and has been translated and localized from Swedish for our audience.
