Latest Firefox 58 user agents:

User Agent Platform Device
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:58.0) Gecko/777 Firefox/58.0 Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:58.0) Gecko/20100101 Firefox/58.0,gzip(gfe) Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64) Gecko/20100101 Firefox/58.0 Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux i686) Gecko/20100101 Firefox/58.0 Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux armv7l; rv:58.0) Gecko/20100101 Firefox/58.0 Ubuntu Unknown
Mozilla/5.0 (X11; SunOS sun4u; rv:58.0) Gecko/20100101 Firefox/58.0 Solaris Unknown
Mozilla/5.0 (X11; SunOS i86pc; rv:52.0) Gecko/20100101 Firefox/58.0 Solaris Unknown
Mozilla/5.0 (X11; OpenBSD amd64; Linux x86_64; rv:58.0) Gecko/20100101 Firefox/58.0 OpenBSD Unknown
Mozilla/5.0 (X11; Linux i686; rv:58.0.2) Gecko/20100101 Firefox/58.0.2 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686 on x86_64; rv:58.0.2) Gecko/20100101 Firefox/58.0.2 GNU/Linux Unknown
Mozilla/5.0 (X11; FreeBSD i386; rv:58.0) Gecko/20100101 Firefox/58.0 FreeBSD Unknown
Mozilla/5.0 (X11; FreeBSD amd64; rv:58.0) Gecko/20100101 Firefox/58.0 FreeBSD Unknown
Mozilla/5.0 (Windows; Windows NT 6.2; Win64; x64) Gecko/20100101 Firefox/58.6 Windows 8 Unknown
Mozilla/5.0 (Windows; Windows NT 10.1; x64) Gecko/20130401 Firefox/58.5 Windows NT Unknown
Mozilla/5.0 (Windows; U; Windows NT 6.3; x64; en-US) Gecko/20100101 Firefox/58.7 Windows 8 Unknown
Mozilla/5.0 (Windows; U; Windows NT 6.2; de; rv:1.9.2.6) Gecko/20100625 Firefox/58.0.2 Windows 8 Unknown
Mozilla/5.0 (Windows; U; Windows NT 10.4; Win64; x64; en-US) Gecko/20100101 Firefox/58.5 Windows NT Unknown
Mozilla/5.0 (Windows; U; Windows NT 10.3; WOW64) Gecko/20100101 Firefox/58.1 Windows NT Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) Gecko/20100101 Firefox/58.0 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:58.0.2.0) Gecko/20100101 Firefox/58.0.2.0 Windows 8 Unknown