Mozilla will continue to provide comprehensive support for Firefox on Windows 10, including security updates and new features. Approximately 36.5% of Firefox users are on Windows 10, and Mozilla's commitment ensures they will receive full feature parity with Windows 11. Users can expect rapid vulnerability patching and ongoing access to new functionalities. Mozilla also recommends security measures for Windows 10 users, such as enrolling in Microsoft's Extended Security Updates program and using Firefox Sync for data backups. Additionally, Mozilla has extended support for Firefox ESR 115 on older operating systems until March 2026, distinguishing itself as the last major browser offering secure browsing on deprecated systems. Mozilla will also support Manifest V2 browser extensions until February 2025.