I've got Windows 7 x64 and would like to start using the latest 64-bit build of Firefox. However, my 32-bit Firefox 3.6.13 has a ton of personal settings. MozBackup would be a good choice, but not sure if it allows imports into the x64 Firefox from the 32-bit.
The x64 FF also needs to run Firebug (doesn't seem to be supported on this version). Anyone know how to do these?