Dave Yeo has released (7/11/2010) an OS/2 build of Seamonkey
2.1 alpha 2, which features support for the new "webm" video
format, and a few other OS/2-specific improvements. SeaMonkey is a
continuation of the Mozilla Suite, and now features addon management,
HTML 5 audio and video, tabbed mail, and more. See my Warpzilla tips page
for more information.
Source: OS/2 Warp News and Rumors.