Mozilla today released release candidate versions of Firefox 1.0.4 which will resolve the security bugs.
We've got 1.0.4 candidate builds. If you all can help us test these bits, and make sure we haven't regressed anything over 1.0.3, that'd be a big help. If you do encounter any new problems (issues you cannot reproduce in 1.0.3) please comment here ASAP. Thanks.Firefox 1.0.4 RC can be found here