The SeaMonkey Project is constantly in need of developers, testers, marketers and other contributors to our success. If you want to help, you can find some resources here.
Our Getting Involved with SeaMonkey page is another good entry point to helping out our project, as well as the SeaMonkey pages on the Mozilla wiki - and the SeaMonkey blog features development news every now and then.
As we're part of the Mozilla project, most of the mozilla.org developer pages also apply to SeaMonkey.
The SeaMonkey project and source code is divided into several areas, we have a list of SeaMonkey project areas available that also contains people ("owners" and "peers") responsible for those.
If you have already submitted patches to Bugzilla, you might be interested in our review and flag policies that apply to such patches.
The Mozilla tinderbox service also has information on the current tree status 24 hours a day.
Testing our code is a very major and important task in every software project, and the good thing is that anyone can participate in that by downloading "Nightly" builds, using them and reporting bugs.
"Nightly" builds are version of our software that are made every night from the
most current source code, the most experimental and dynamically changed
versions are from the so-called "trunk" of the development tree, available as
latest-trunk
nightly builds. Those are the versions that need the highest amount of
testing, often contain exciting new features but also can easily crash or
destroy any of your data (some people claim they can also eat children or make
your kitchen go up in flames, but we have no actual evidence of such things
actually happening - yet).
To cut things short, we're happy about everyone testing those builds, but
be very careful and keep backups of your data if you do so, as some of the
code you're testing might not have been tested at all before.
Our Getting Involved page, the Mozilla wiki on SeaMonkey QA (Quality Assurance) and the MDC (Mozilla Developer Center) QA section offer some good additional info about testing and helping us improve our software quality through that.
Even as a normal user of stable SeaMonkey versions, you can help the project a lot by spreading the word and telling all your fellow friends, web developers and other people around you about our great software.
You can use our logo & artwork for pointing other people to SeaMonkey, as that is explicitely allowed by our SeaMonkey trademark policy.
The merchandise available from the SeaMonkey shop can also help you in spreading the word.