Latest Firefox 139 user agents:

User Agent Platform Device
Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0 | Screen:2560x1440 | Window:1440x820 Windows 8 Unknown
Mozilla/5.0 (X11; Linux; rv:139.0) Gecko/20222411 Firefox/139.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_3; rv:139.531.355) Gecko/20100101 Firefox/139.531.355 Mac 10 Unknown
Mozilla/5.0 (X11; Linux; en-GB; rv:139.0esr) Gecko/20221309 Firefox/139.0esr GNU/Linux Unknown
Mozilla/5.0 (Windows NT 6.2; Win32; x32; rv:139.0) Gecko/20100101 Firefox/139.0 | Screen:1680x1050 | Window:1920x947 Windows 8 Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0 | Screen:2560x1440 | Window:1280x650 Ubuntu Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3; rv:139.746.635) Gecko/20100101 Firefox/139.746.635 Mac 10 Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0 | Screen:1680x1050 | Window:1920x947 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10; rv:139.0esr) Gecko/20010101 Firefox/139.0esr Mac Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_1; rv:139.931.424) Gecko/20100101 Firefox/139.931.424 Mac 10 Unknown
Mozilla/5.0 (Windows NT 6.2; rv:139.0) Gecko/20100101 Firefox/139.0 Windows 8 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 11; rv:139.0) Gecko/20100101 Firefox/139.0 Mac Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 13.2; rv:139.0) Gecko/20100101 Firefox/139.0 Mac 13 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 12_6; rv:139.0) Gecko/20100101 Firefox/139.0 | Screen:1280x720 | Window:1440x820 Mac 12 Unknown
Mozilla/5.0 (X11; Arch Linux; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0 Arch Linux Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0esr) Gecko/20100101 Firefox/139.0esr Windows 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 13; rv:139.0) Gecko/20110101 Firefox/139.0 Mac Unknown
Mozilla/5.0 (Macintosh; Intel RMac OS X 11.4; rv:139.0) Gecko/20100101 Firefox/139.0 Mac Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0 | Screen:1280x720 | Window:1600x860 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3; rv:139.913.582) Gecko/20100101 Firefox/139.913.582 Mac 10 Unknown