Setup

Add non-free and contrib to /etc/apt/sourses.list 

sudo apt-get install thunar thunar-volman xarchiver thunar-archive-plugin thunar-media-tags-plugin p7zip-rar arj lhasa rar rpm unar gnome-icon-theme tango-icon-theme

Setup for Raspbian

sudo apt-get install thunar thunar-volman xarchiver thunar-archive-plugin thunar-media-tags-plugin arj lhasa rpm p7zip p7zip-full gnome-icon-theme tango-icon-theme