From MozillaZine Knowledge Base
Mozilla stores signon information (usernames and passwords) in an encrypted file in the profile folder. When bug 360493 was fixed, the file format changed. To avoid compatibility problems with the old format, the file and the preference controlling its name were given new names. This preference controls the name of the signon information file.
Possible values and their effects
A filename to use for the file storing signon information in the profile. Default is signons2.txt.
First checked in
2007-03-05 by Gavin Sharp (patch by Justin Dolske)
Has an effect in