Is it in your Password manager?

Thanks for the reminder--I found the username there. It wasn't what I expected.

I know the feeling.  :-/

One last thing. In the event that the passwords information is lost, you should record all information in a separate text file somewhere else on your hard drive, or written down. You can easily copy and paste if you need to do so. If you are concerned about someone else looking at that file, you can compress it using a password.

Note that wen you can login to your you can post issues and the like for addons.mozilla.org at https://forums.mozilla.org/