Docs

Step by Step

Create ~/mozilla
Create a .mozconfig in ~ (or in ~/mozilla) like

#
# See http://www.mozilla.org/build/ for build instructions.
#

# Options for client.mk.
mk_add_options MOZ_CO_PROJECT=browser
mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/obj-@CONFIG_GUESS@

# Options for 'configure' (same as command-line options).
ac_add_options --enable-application=browser
ac_add_options --enable-ui-locale=ku

Go to ~
do

cvs -z3 -d:pserver:anonymous@cvs-mirror.mozilla.org:/cvsroot co -r MOZILLA_1_8_BRANCH mozilla/client.mk

for firefox 2.0 or

cvs -z3 -d:pserver:anonymous@cvs-mirror.mozilla.org:/cvsroot co mozilla/client.mk

for no special branch

So:

 1. cvs -z3 -d:pserver:anonymous@cvs-mirror.mozilla.org:/cvsroot co -r MOZILLA_1_8_BRANCH mozilla/client.mk
 2. cd mozilla
 3. make -f client.mk checkout
 4. make -f client.mk build