Recently, i had to use a public pc in my workplace for a while. i used Firefox to access the internet, and for practical reason, i signed in my Firefox account. After i was done, i made sure i have signed out my Firefox account before leaving. The next day, when i used Firefox again on that pc, i noticed that all my saved passwords (from syncing my Firefox account) were still in that Firefox browser, even though i haven't signed in my Firefox account. Now i feel like i am at the mercy of fate because anybody who used that pc after me yesterday could have gained access to all my passwords. So far, nothing bad happens and i hope it stays that way.

I don't know if anyone has brought this up. Since Firefox does not erase any saved password after a user signs out, I think Firefox should, or rather, MUST give a warning message after a user signs out of Firefox to manually erase any saved password on Firefox, so that any stupid user like me will not make that stupid mistake so easily.