I believe that they have resolved the problem, and are waiting for the next version of Firefox to be released which will have the fix in it. I believe it is already fixed in the nightly-builds.
So hang in there... I too am waiting, but at least there has been movement.
I know this is an old thread, but I just got here via Google, and it looks like the most up-to-date Firefox, version 3.6.13 still hasn't fixed this problem. Any workaround?