There are three types Mozilla mirrors.
(http://www.mozilla.org/mirroring.html)
* mozilla-current
contains only the current version of Firefox and Thunderbird
* mozilla-release
contains Firefox, Thunderbird, and Sunbird releases
* mozilla-all
complete archive
Define following variables for mozilla master sites:
MASTER_SITE_MOZILLA_ALL = mozilla-all
MASTER_SITE_MOZILLA = mozilla-release
and change some packages to use appropriate variable.
Update contents of MASTER_SITE_MOZILLA with master and primary mirrors
taken from http://www.mozilla.org/mirrors.html and add some sample definitions.