Hey there!

Please see the following link and see if it helps:

https://support.mozilla.org/en-US/questions/1333262

Hope I helped!

Kind regards,

Bithiah

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.