[Haskell-cafe] Developing XPCOM components (Firefox extensions) in Haskell

Hello, I wondered if anyone could advice on how to develop XPCOM components in Haskell. I am aware that HDirect supports COM and that there are some similarities with XPCOM but I do not have the time to extend/fix HDirect to support XPCOM. Would using FFI directly be simpler? What problems should I expect? Would you anticipate platform specific issues ? The components should work under both Linux and Windows and ideally Mac as well. Thanks in advance, titto