I believe I've encountered a phishing attempt via FireFox sync
I was using firefox 3.6.12, and noted a small pop-up box advising me that FireFox sync had encountered a password problem. It wanted me to re-enter the password in the popup box. Since I'm new to Firefox sync (I'm an x-marks refugee), I'm a little leery.
It did manage to make the 'sync' logo in the lower right of the window show a problem.
I closed the box, and opened the Sync area under the 'tools' tab. I forced a re-sync, checked my password, and everything was ok.
I provided no info to the pop-up box.