Latest Firefox 42 user agents:

User Agent Platform Device
Mozilla/5.0/Firefox/42.0 Unknown Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0,gzip(gfe) Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0 AlexaToolbar/alxf-2.21 Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0 Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:42.0) Gecko/20100101 Firefox/42.0,gzip(gfe) Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:42.0) Gecko/20100101 Firefox/42.0 AlexaToolbar/alxf-2.21 Ubuntu Unknown
Mozilla/5.0 (X11; Ubuntu; Linux armv7l; rv:42.0) Gecko/20100101 Firefox/42.0 Ubuntu Unknown
Mozilla/5.0 (X11; OpenBSD amd64; rv:42.0) Gecko/20100101 Firefox/42.0 OpenBSD Unknown
Mozilla/5.0 (X11; NetBSD amd64; rv:42.0) Gecko/20100101 Firefox/42.0 NetBSD Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0 conkeror/1.0pre1 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86.64; rv:42.45.2) Gecko/20100101 Firefox/42.45.2 GNU/Linux Unknown
Mozilla/5.0 (X11; FreeBSD i386; rv:42.0) Gecko/20100101 Firefox/42.0 FreeBSD Unknown
Mozilla/5.0 (Windows NT 9.0; Win64; x64; rv:42.37.1) Gecko/20100101 Firefox/42.37.1 Windows NT Unknown
Mozilla/5.0 (Windows NT 8.1; Win64; x64; rv:42.44.2) Gecko/20100101 Firefox/42.44.2 Windows NT Unknown
Mozilla/5.0 (Windows NT 7.1; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0 Windows NT Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0 OWASMIME/4.0500 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0 MRSpy/0.8.7 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0 BLNGBAR BLNGBAR BLNGBAR BLNGBAR BLNGBAR BLNGBAR BLNGBAR BLNGBAR Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0 AlexaToolbar/alxf-2.21 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:42.0) Gecko/20100101 Firefox/42.0 Windows 8 Unknown