List of Firefox 121 Browsers

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Agent First Seen (AEST) Last Seen (AEST)
Firefox 121 Windows 10 [286481] 2023-12-30 22:04:31 2026-09-18 21:31:28

Firefox 121 Linux (other) [293984] 2025-01-02 22:29:52 2026-09-18 21:31:28

Firefox 121 Linux Ubuntu [299495] 2025-11-07 20:46:48 2026-08-27 21:26:04

Firefox 121 Mac OS X 10 [299448] 2025-11-07 20:37:27 2026-08-27 11:00:26