Latest Firefox 90 user agents:

User Agent Platform Device
Mozilla/5.0(Macintosh; Intel Mac OS X 10.15; rv:90.0) Gecko/20100101 Firefox/90.0 Mac 10 Unknown
Mozilla/5.0 (X11;Linux x86_64; rv:90.0) Gecko/90.0 Firefox/90.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0,gzip(gfe) Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:82.48.236.174] Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:79.19.184.27] Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:170.81.231.125] Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:90.0) Gecko/20100101 Firefox/90.0 Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux armv7l; rv:90.0) Gecko/20100101 Firefox/90.0 nb: Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux armv7l; rv:90.0) Gecko/20100101 Firefox/90.0 Ubuntu Unknown
Mozilla/5.0 (X11; TrueOS; FreeBSD amd64; rv:90.0) Gecko/20100101 Firefox/90.0 FreeBSD Unknown
Mozilla/5.0 (X11; Slackware; Linux x86_64; rv-90.0) Gecko/20100101 Firefox/90.0 Slackware Unknown
Mozilla/5.0 (X11; Slackware64-14.2; rv:90.0) Gecko/20100101 Firefox/90.0 Slackware Unknown
Mozilla/5.0 (X11; Slackware-14.2; x86_64 rv:90.0) Gecko/20100101 Firefox/90.0 Slackware 14 Unknown
Mozilla/5.0 (X11; Slackware x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 Slackware Unknown
Mozilla/5.0 (X11; Slackware Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 Slackware Unknown
Mozilla/5.0 (X11; Slackware 14.2 x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 Slackware 14 Unknown
Mozilla/5.0 (X11; OpenBSD amd64; rv:90.0) Gecko/20100101 Firefox/90.0 OpenBSD Unknown
Mozilla/5.0 (X11; NetBSD amd64; rv:90.0) Gecko/20100101 Firefox/90.0 NetBSD Unknown
Mozilla/5.0 (X11; Linux Slackware x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 Slackware Unknown
Mozilla/5.0 (X11; Linux ppc64le; rv:90.0) Gecko/20100101 Firefox/90.0 Mac Unknown