FirePassword is first ever tool written to recover the login passwords stored by Firefox. And it was the first tool along with FireMaster when SecurityXploded was launched back in early 2007.
Firefox stores all passwords in signons.sqlite (previously signons.txt) file in encrypted format. FirePassword can instantly decrypt and recover these secrets.
FirePassword also supports recovery of passwords from Master Password protected profiles. That does mean you can bypass master password, its just that FirePassword automatically detects the presence of Master Password and prompts you to enter it to successfully decrypt the stored passwords.
Current version v4.5 supports password recovery from latest version of Firefox v10.0.1 and other usability related changes.
To know how it works and download the latest version, visit FirePassword