Mozilla has extended support for the previous Firefox 115 ESR branch until September 2025 (the support period was set to expire in March). Firefox 115 is the last branch capable of running on operating systems. Windows 7, 8 and 8.1, and macOS 10.12, 10.13, and 10.14. Firefox 115 likely won't be live until September, as the changelog mentions that an additional maintenance extension will be considered in August.
According to Mozilla's February statistics, 7.8% of Firefox users continue to use Windows 7, despite Microsoft ceasing support for these operating systems in January 2020. Six months ago, this figure was 10.5%, a year and a half ago - 13.7%, and two and a half years ago - 19.1%. In Google Chrome, support Windows 7 and Windows 8 was discontinued in February 2023, leaving Firefox as the only major browser with support. Windows 7/8.
Additionally, we can mention the corrective release of Firefox 135.0.1, which fixes a vulnerability (CVE-2025-1414) caused by problems with memory handling. This vulnerability could potentially lead to the execution of an attacker's code when opening specially designed pages. The new version also fixes several non-security issues, such as the disruption of drop-down menus on some sites, crashes when scrolling content, the inability to restore closed windows and tabs via the History menu after an update, and disruption of manually added search engines.
Source: opennet.ru
