Latest Iceweasel 115 user agents:

User Agent	Platform	Device
Mozilla/5.0 (X11; Linux x86_64; rv:115.0) Gecko/20100101 iceweasel/115.0.2	GNU/Linux	Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0 iceweasel/115.0.2	GNU/Linux	Unknown