Flash Got doesn't show Axel in firefox

I have installed Axel using brew. I have also verified if Axel is working or not. Output of Axel command: which Axel

/usr/local/bin/axel
/usr/local/etc/axelrc
/usr/local/share/man/man1/axel.1
/usr/local/share/man/zh_CN/man1/axel.1`