[forgotpwd16]

Having to take such steps sounds like what you're using isn't working right. Fortunately Firefox doesn't need you to do this.

[jonnycomputer]

- I didn't know this is the expected behavior of FF

- I'm paranoid about getting locked out of certain accounts by stupid accidents (particularly on badly designed web sites). I temporarily copy old password too, when changing to a new one.

- I do wish Firefox's password manager maintained a history of previous passwords like LastPass does.