Latest Firefox 138 user agents:

User Agent Platform Device
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_2; rv:138.949.113) Gecko/20100101 Firefox/138.949.113 Mac 10 Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 | Screen:1280x720 | Window:1280x650 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 | Screen:2560x1440 | Window:1600x860 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4; rv:138.890.251) Gecko/20100101 Firefox/138.890.251 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_2; rv:138.477.796) Gecko/20100101 Firefox/138.477.796 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 14_1; rv:138.0) Gecko/20100101 Firefox/138.0 | Screen:1440x900 | Window:1920x947 Mac 14 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 13.6; rv:138.0) Gecko/20010101 Firefox/138.0 Mac 13 Unknown
Mozilla/5.0 (Windows NT 6.2; rv:138.555.170) Gecko/20100101 Firefox/138.555.170 Windows 8 Unknown
Mozilla/5.0 (X11; Linux amd64; rv:137.0) Gecko/20100101 Firefox/138.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5; rv:138.381.682) Gecko/20100101 Firefox/138.381.682 Mac 10 Unknown
Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:138.235.680) Gecko/20100101 Firefox/138.235.680 Windows 8 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 anjdebug Windows 10 Unknown
Mozilla/5.0 (X11; Debian; Linux x86_64; rv:138.0esr) Gecko/20220111 Firefox/138.0esr Debian Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 14; rv:138.0) Gecko/20110101 Firefox/138.0 Mac Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0/UHcmkYcJCy Windows 10 Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 | Screen:1280x720 | Window:1600x860 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64; en-AU; rv:138.0) Gecko/20172711 Firefox/138.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 11; rv:138.0) Gecko/20010101 Firefox/138.0 Mac Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:138.0esr) Gecko/20221919 Firefox/138.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64; en-US; rv:138.0) Gecko/20222911 Firefox/138.0 GNU/Linux Unknown