Most users want to install it from the distribution’s package repository.
Below are the steps you have to take for your distribution.
If you want to install the most current version, you have to download, compile and install manually, but fear not, you shall be guided in the developers section of this wiki.
http://old.fluxbox-wiki.org/index.php?title=Update_fluxbox#Using_Ubuntu_and_Debian
:~# yum install fluxbox
Debian Package System based distributions (i.e. Debian, Ubuntu, ALT Linux, and many more)
:~# apt-get install fluxbox
or
:~# aptitude install fluxbox
The packages in Debian stable might not be very up-to-date. See also [http://fluxbox-wiki.org/index.php?title=Update_fluxbox#Using_Ubuntu_and_Debian how to update fluxbox].
*The packages for the current version of OpenSUSE (12.3) are [http://software.opensuse.org/search?baseproject=openSUSE%3A12.3&p=1&q=fluxbox here]. *Using [http://software.opensuse.org/search this website] you could find the package that fits your version of OpenSUSE.
FreeBSD users: from source via ‘’‘make install clean -C /usr/ports/x11-wm/fluxbox’’’ or binary package via either ‘’‘pkg_add -r fluxbox’’’ or ‘’‘pkg install fluxbox’’’ for pkgng users
NetBSD users (pkgsrc): ‘’’/usr/pkgsrc/wm/fluxbox/’’’
OpenBSD users: fetch the package from one of the ftp-mirrors ([http://www.openbsd.org/ftp.html a list is here]), or you can use ports to compile your own (’’’/usr/ports/x11/fluxbox/’’’)