Password copy paste
As a rule you should always copy and paste username and password to avoid errors.
However, this can sometimes present a problem. For instance, if copying from a Firefox browser page sometimes a space is inserted at the end of the copied text. (more on this below)
If the first attempt does not work, try copying the password into the username field and see if there is a space before or after it.
Firefox Spaces
A solution many programmers use is to copy to a plain text editor (which will show the space if it exists), and then copy from there.
This page discusses the problem but none of the solutions I tried worked for me.
https://support.mozilla.org/en-US/questions/950377
Storing Passwords
Password Agent is a program I’ve been using for a decade or so. It’s an easy-to-navigate password management program that allows you to store all your passwords, secret notes and data snippets in a single, secure database. Do you have too many passwords to remember? Are pieces of paper that you used to write down your important account information lost? Do you want to find this information quickly?
It will run on a PC and from a flash drive. Windows 7/8 etc.
And, it keeps unauthorized users from accessing your private information. More…