Comment by j...@google.com: The source is at https://google-web-toolkit.googlecode.com/svn/plugins/xpcom.
The issue you want is http://code.google.com/p/google-web-toolkit/issues/detail?id=609 I have done some work, but things are complicated by the fact Sun doesn't support FF3+, Mozilla doesn't have Solaris builds available, and it is a lot of work to build from source on a marginally supported platform where there are lots of dependencies. I have it working with FF3.0, but I can't ship those binaries since I grabbed untrusted binaries to use for the libraries. As mentioned on that issue, if you are willing to do the work to get it supported I can help you get it working. For more information: http://code.google.com/p/google-web-toolkit/wiki/TroubleshootingOOPHM -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
