No, no and no. Had no time yet. It wasn't something i couldn't fix (for me) and i just didn't find the time needed for searching/testing. Yet.
Came across this thread and seeing how everybody says 'no problem' thought i'd mention my experience.
Dorus,
the steps are simple but probably irrelevant now with RC (i updated to RC from 3.5beta99, not installed fresh): create a new profile, install 3.5beta4 or 99. Copy signons2.txt, signons3.txt and key3.db from a 3.0.11 profile backup. Start Fx and look at passwords - there'll be none. I can clearly see them in my backup copies though.
This happens in RC profiles which i updated to RC from betas, didn't try a new one yet. In those 2 profiles, i can see only passwords i manually saved.
EDIT: OK, did a new profile, fresh for RC.
Before opening it, copied signons2.txt, signons3.txt and key3.db from a FEBE full 3.0.11 profile backup (the passwords are there, in signons files, i can see them). Started Fx/Options/Security/Saved passwords - blank!
BTW, i don't see signons.sqlite in 3.0.11 profiles. Didn't exist then? Dont't remember.
Can someone file a bug, please.