This extension generates a password from a website domain & a personal password.
I give it 4 stars but the developer needs to add a username generator too because I cannot bypass websites with it that require usernames too unless I am using it wrong. I will use it for other things though.
http://www.packetizer.com/
https://digitalinspiration.com
http://identify.so/
http://www.camerongray.me/
http://www.xrayz.co.uk/
https://51pwd.com/
http://sokolov.cc/
Unknown
paulgreg
https://passwordgen.org
http://www.passwordmojo.net/
Nth Dimension LLC