nsILoginMaganer API changes resulted in that the addon couldn't access the password database. This is updated now.

browser console documentation fix from Frank Benkstein

Upgrade code to use WebAPI version. It is not smooth as before, because WebAPI doesn't allow accessing stored passwords. You'll need to do the copy-paste tricks yourself; it's nasty, but possible. At least for me that was better than to go through all 28 internal sites with the same password.