ADF11g Drag & Drop broken in FireFox 3

There is a fix on the way for this problem. Read the announcement on OTN:

All,
FireFox 3.6 is currently being pushed out to FireFox 3.n users. Please be aware that this version of FireFox removed(rather than deprecated) an API which has lead to Drag and Drop in ADF Faces 11g breaking. We have already fixed the bug and are backporting it to 11g Patchset 1. If you have Support you will be able to request the patch (reference tracking bug 9456896) as soon as it is available. in the meantime we suggest that you do not uptake FireFox 3.6 if you use Drag and drop.