Yeah its easy...
Now you have to have firefox closed to do all of this.
If you have XP goto Start RUN
copy and paste this in the run then click OK
%APPDATA%\Mozilla\Firefox\Profiles\
That should bring you to a folder with a name like xxxxxxxx.default
Right click on it and click on copy
Now you have to open the freeagent drive from my computer and then find the same folder on the external.
once you have fond it right click and paste.
if there is currently a profile folder there move it to the desktop before pasting the one from the computer.
easy huh
I wish that firefox had an app that did this.