EnigmaPass is a Chrome Extension that generates secure, repeatable, per-domain, passwords based on a single master password. You only have to remember one password, but you'll get a different password for every website you visit. It builds on the great work of SuperGenPass, but makes it more secure & easier to use.
When you're not able to use EnigmaPass, you can still use the tools available at SuperGenPass, they will generate the same passwords.
So why use EnigmaPass? Well, being a chrome extension, EnigmaPass benefits from the enhanced security between tab and browser in Google Chrome. A website would not be able to detect any information placed in EnigmaPass, which they may be able to with SuperGenPass.