It can run on any modern Linux Distro, with minor workarounds.

The Linux users who are hackers will likely see the attention of (more) evil coders as a challenge. And of course Linux isn't completely immune, there is always the Naive-User exploit. But aside from that I don't see how malware could take hold, assuming proper precautions are taken. (Mandatory Access Control software/patchset, not running as root 24/7, keeping your system up-to-date, etc)

The difference is in Linux you can uninstall Firefox and It's not required for some of the new toys to work. And all modern OSes Do include a web browser