Firefox version for Amazon Linux 2

It's recommended to always download the latest one from https://www.mozilla.org/en-US/firefox/all/#product-desktop-release

https://repost.aws/knowledge-center/ec2-linux-2-install-gui

Besides downloading from Mozilla website, you can install Firefox ESR from amazon-linux-extras

As of time of writing, this is version 102.13. Snippet of command output below

[root@]# amazon-linux-extras install firefox
Installing firefox
Resolving Dependencies
--> Running transaction check
---> Package firefox.x86_64 0:102.13.0-2.amzn2.0.1 will be installed