An OS/2 build of Seamonkey version 1.1.3 has ben released (7/18/2007). SeaMonkey is a continuation of the Mozilla Suite, which was discontinued by the Mozilla Foundation. See my Warpzilla tips page for more information. On a related note, Firefox and Thunderbird version 2.0.0.5 have been released for the "core" platforms; expect to see OS/2 builds in the near future.
Source: OS/2 Warp News and Rumors