When installing Kali...

Tor

$ apt-get install tor
$ service tor start
$ proxychains iceweasel

Steam

$ sudo apt-get install ia32-libs
$ sudo apt-get install steam

• Issue here.

Thunderbird

Add the Mozilla repo:

$ vi /etc/apt/sources.list

with

deb http://downloads.sourceforge.net/project/ubuntuzilla/mozilla/apt all main

Add Mozilla's public key:

$  apt-key adv --recv-keys --keyserver keyserver.ubuntu.com C1289A29

Update apt-get:

$ apt-get update

Install:

$ apt-get install thunderbird-mozilla-build

Others

https://community.rapid7.com/thread/5643