SeaMonkey seems to work okay on the site. I use SeaMonkey as my default; it is convenient as the internet app for a home office. I also use Firefox, Flock, K-Meleon, Google Chrome, and IE8. So I can see how it appears with each. But the first, SeaMonkey, works just fine. I figure - in my ignorance - that if it works with Firefox it works with SeaMonkey.
SeaMonkey gets short Shrift; it is seldom mentioned in discussions of browsers. Of course, technically it is more than a browser. It is browser, e-mail, newsgroups, address book, html editor, and irc chat. My home is my office and it is convenient for that. It does lack a calendar, so I use Sunbird.