Please note: Due to various complications (such as an influx of dead links), this page is no longer updated or maintained. Visit the main page to reference the newest releases of Mozilla and SeaMonkey.
The Mozilla FTP "server" automatically refers requests to one of a large number of mirrors to alleviate server loads. Lately, all Mozilla releases prior to version 1.7 were withdrawn from many of the main servers without yet being added to the archive server for earlier releases. Thus, many of the non-alpha/beta releases between 1.0 and 1.6 (including the final versions available for Mac OS 8 and 9) may appear to be dead links more often than not.
If you need to download one of these software releases but cannot, the least I can do is suggest waiting a while and trying again. The link may refer you to a server that still carries it. Alternately, I recommend visiting a website such as the evolt.org Browser Archive.
Alpha, Beta, and Release Candidate versions of Mozilla or SeaMonkey are released for testing in the interim periods between final software releases. In the above chart, these testing releases (as well as all pre-1.0 versions of Mozilla) are color-coded in a shade of teal darker than that representing final releases.
Alpha: The first interim software release is given the Alpha designation. Many of the more significant or risky changes to software occur in the Alpha development stage. Starting with Mozilla 1.8 development, several successive alpha software builds are released before advancing to a beta release.
Beta: The next stage of software development after an Alpha release is called a Beta. During this development stage, new features and other significant changes are usually finalized while development shifts to bug fixing and stabilization.
Release Candidate (RC): Further interim releases often exist before the Beta and final versions of a software release. These versions, called Release Candidates, primarily contain further bug fixes. Sometimes the final release of a software version is identical to the final Release Candidate. I have not listed Release Candidates in the above chart, although they are sometimes visible on Mozilla.org's Releases page and FTP server.
SeaMonkey: The original codename to the software, also becoming the proper name after the suite was discontinued as an "official" Mozilla-branded product in 2005.
Milestone: Early in the development of Mozilla, successive software releases were known as Milestones. This practice was abandoned in favor of conventional version numbers in late 2000.
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