Missing firmware after upgrade to 64 bit

[Frank McCormick <debianlist@videotron.ca>]

Installed 64 bit version of Stretch yesterday and noticed this morning
I am apparently missing some firmware.

update-initramfs: Generating /boot/initrd.img-4.4.0-1-amd64
W: Possible missing firmware /lib/firmware/tigon/tg3_tso5.bin for module tg3
W: Possible missing firmware /lib/firmware/tigon/tg3_tso.bin for module tg3
W: Possible missing firmware /lib/firmware/tigon/tg3.bin for module tg3


An aptitude search doesn't turn up anything.

This is my apt sources list

root@frank:/etc/apt# cat sources.list
#


deb http://ftp.ca.debian.org/debian/ stretch main
deb-src http://ftp.ca.debian.org/debian/ stretch main

deb http://security.debian.org/debian-security stretch/updates main
deb-src http://security.debian.org/debian-security stretch/updates main
root@frank:/etc/apt#

What else should be in there ?

Thanks